Students and Teachers Forum
Again, cosθ = 4/5 = b/h So, p = √[p2 + b2] = .....................= 3, Finally, cotθ = b/p = ................Find .....
8sinθ = 4+cosθ Squaring both sides we get, 64 sin2θ = (4 + cosθ)2 64 sin2θ = 16 + 8 cosθ + cos2θ 16 + 8 cosθ + cos2θ = 64 (1 − cos2θ) .....
The savanna is an ecosystem. It consists of a tropical grassland with warm temperatures year-round and with its highest seasonal rainfall in the summer. The savanna is characterized by grasses and small or dispersed trees that do not form a closed .....
1 - sin60°cos60° = 1 - tan30°1 + tan30° or, 1 - √3212 = 1 - 1√31 + 1√3 [Subtituting the respective values] or, 2 - √3 = √3 - 1√3 + .....
Please multiply matrices A & B. i.e; find AB. Then simplify and you will get a matrix which all elements are .....
Let k shoukd be added to x3 - 5x2 + 10x - 5 to make a polynomial having a father x+ 3. Then, x + 3 is factor of x3 - 5x2 + 10x - 5 + k. i.e; (-3)3 - 5(-3) + 10(-3) - 5 + k = 0 Solve and find .....
Here, Let f(x) = 3x3 + 7x2 + 11x - kx - 3. Compare 3x - 2 = 3( x - 2/3) with x - a, we get a = 2/3. By the remainder theorem, f(a) = 0 or, 3(2/3)3 + 7(2/3) 2 + 11(2/3) - k(2/3) - 3 = 0 Solve and find .....
Here, Let f(x) = 2x3 + 3x2 - 5x +4. Compare x + 2 = with x - a, we get a = -2 By the remainder theorem, f(a) = R or, 2(-2)3 + 3(-2) 2 - 5(-2) + 4 = R Solve and find .....
(क) लेख्दै छ । (ख) काट्थे । (ग) हुनेछौँ । (घ) जानुहोस् .....
(क) कल (ख) इबी (ग) अनुकूल (घ) .....
a. wouldn't I? b. She left Nepal. c. I didn't garden either. d. cook e. Prerana told Prashant that he had made a mistake. f. He was made to clean the .....
A hungry fox, in search of a meal, once saw a crow, sitting on the branch of a tree, and holding a large piece of meat in its beak. The fox sat down beneath the tree, and began to talk to oneself aloud, "What a find handsome bird that crow .....
Here, x = 42o [ Alternate angles are equal.] Again x + y = 80o [ Alternate angles are equal.] or, 42o + y = 80o .....
It is used as reducing agent that molecular hydrogen cannot reduce. For it is very powerful than molecular hydrogen. So its react instantly so there are no more uses of nacent hydrogen. You can even say nacent hydrogen does not exist in .....
At 40ºC, Solubility = 46 Weight of solvent = 3.875 gm We know, Solubility = weight of solute/weight of solvent ⨉ 100 or, 46 = weight of solute / 3.875 ⨉ 100 or, weight of solute = 46/100 ⨉ 3.875 ∴ weight of solute .....
The significance of valence electron.
1)The valence electrons of an atom are responsible for, and take part in chemical changes.
2)The valence electrons in an atom determine the mode of chemical combination, i.e., whether the atom .....
Mass (m) = 200n height (h) =5 m time taken (t) = 10 sec Energy (E) =? We have, E = mgh solve it, You will get workdone Now, power (P) = work done/time taken After this you will get the power of .....
Class II lever has a mechanical advantage always greater than 1 because the load is between the fulcrum and the .....
sin90-θtan90-θ cosθcotθ sin90-θ = cos θ cotθ cosθcotθ cosθ [sin (90 - θ) .....
Here, fg(x) = 9x + 2 or, f(g(x)) = 9x + 2 or, 3g(x) - 1 = 9x + 2 [ Since, f(x) = 3x - 1.] Now solve and find .....
Can you find ff(5) .....
Here, g = {(a , 1), (b , 2), (c , 3)} and fog = {(a , p), (b , q), (c , r)} We need to find f. Showing the above information in a diagram, From the diagram, we can say that f(x) = {(1, p), (2, q), (3, .....
Nepal Rastra Bank (NRB) is the Central Bank of Nepal. It was established in 1956 under the Nepal Rastra Bank Act, 1955. It is responsible to discharge the central banking responsibilities including guiding the development of the domestic financial .....
Structure of .....
Uriniferous tubule Collecting tubule 1. Uriniferous tubule is a tube like structure that carries the filtrate from the mephron to the collecting tubule 1. The collecting tubule collects all the filtrate .....
Africa is called a dark continent because of the following reasons: - Most parts of this continent remain unknown for many centuries, therefore, it is called a dark continent. - The Europeans regarded Africans as very different from and ignorant .....
White blood cells, or leukocytes, are an important part of the body's immune system. Various types of white blood cells are continuously produced within the body to keep the immune system strong. Parts of the body that produce and harbor .....
plneat - Planet tcepser- Sceptre Sceptre - a decorated stick that is carried by a queen or king during some official .....
Look into the pie chart below: It shows that the number of push-ups is increasing slowly. On Sunday and the Tuesday, the number of push-ups are at 5 but the push-ups on Monday goes up to 10. Similarly, the number of push-ups on .....
Here, Exempt amount = Rs. x Taxable amount =Rs. y Then the total income = Exempt amount + Taxable income = x + .....
Bribery is the act of giving or receiving something of value in exchange for some kind of influence or action in return, that the recipient would otherwise not alter. Essentially, bribery is offering to do something for someone for the expressed .....
Nepal should learn the following lessons from North American, South American and African countries: - As in North American, South American and African countries, Nepal is full of natural resources which has the prospects of the tourism industry and .....
There is also the great prospect of mining in Africa. Commercial mining has been set up in southern Africa and northern countries. Therefore, there should be the advancement in mining in Africa. The Savannah is the grassy land where animal .....
Here, Area of 4-walls(A) = Perimeter ⨯ height = 36m ⨯ 3m =......................Find it. Rate of cost = C = Rs.16/m2 We know, Total cost = T = A ⨯ C =.....................Find .....
There are lot of theories about UFO, Cyclons but it is not sure till now what is the exact .....
Here, Radius = 7cm = r Height = h = 35cm CSA = Half of CSA of cylinder = πrh=.................Find it. TSA = CSA + 2 ⨯ area of 2 semi-circle + area of rctangular part = πrh .....
Shouldn't .....
Shouldn't .....
The climate of Africa is affected by latitude, ocean and seas, ocean currents and high plateaus. The climate of Africa is hot and wet throughout the year with rain after every afternoon. The climate is dry near the tropic of cancer and tropic of .....
Here, Total no.of cards = n(S) = 52 No.of king = n(K) = 4. i) P(both are king) = P(KK) = P(K)P(K) = 4/52 ⨯ 3/51 = ...............Find it. ii) No, of face cards = n(F) = 12 P(Both are face cards) = P(FF) = P(F).P(F) = .....
You should better not go .....
Saudi Arabia gave Sophia Robert .....
By question, Jay earns Rs 2500 in 5 days. Jay earns Rs 2500 ∕ 5 in 1 day. Jay earns Rs 500 in 1 day. Jay earns Rs 500 ∗ 8 in 8 days. Jay earns Rs 4000 in 8 .....
1. a 2. from 3. shouldn't they? 4. remains 5. has been casting 6. had been voting 7. are made 8. though 9. had the political parties and the staff of the election commission .....
Let the SP of the laptop be x. Here, SP of the laptop with 2% commission = Rs 45000 Commission percent = 2% Using formula, Commission amount = Commission % of SP .....
Let a be the 1st term and d be the common difference of an AP. Then, t2 = a + d [ Since, tn = a + (n - 1)d.] t6 = a + 5d t18 = a + 17d According to question, they are in .....