Math, asked by dfcv1625, 2 months ago

If sin A =1/2, then the value of 3 cos A -4cos³A is *

Answers

Answered by vishu1010

0

Answer:

cosA = √3/2 (cosx=B/H)

Now,

3cosA - 4cosB = 3√3/2 - 3√3/2 = 0

Previous Question

Next Question

Similar questions

Environmental Sciences, 1 month ago

a damaged flag should not be displayed true or false ...

Physics, 1 month ago

what will be the power consumed by a 50 ohom wire if it is kept across a potential difference of 200 v?

Social Sciences, 1 month ago

drawbacks of third tier of govt in india...

English, 2 months ago

Change into past perfect tense I will write to you...

Math, 2 months ago

If tanA=√3 -1/√3 +1 prove that cosA= √3 +1/ 2√2...

Math, 8 months ago

If x=1/(2-3^1/2)then x^3-2x^2-7x+5...

History, 8 months ago

What is the smallest country name...

CBSE BOARD X, 8 months ago

Disadvantages of Power point Presentation ...