Math, asked by klaus199, 1 year ago

cos square 15 degree minus sin square 75 degree

Answers

Answered by Anonymous

5

Answer:

Step-by-step explanation:

cos²15°-sin²75°

cos²(90-15)-sin²75°

sin²75°-sin²75°

=0

Answered by Rajbardhan

1

cos2( 90-75) - sin275

= sin2 75- sin275

=0

Previous Question

Next Question

Similar questions

Math, 6 months ago

In triangle PQR, angle Q = 90°, PQ = 5√2 cm , PR = 10cm then find angle P = ?

Math, 6 months ago

10. In triangle ABC, right angled at B, if tan A = 1 / √3, find the value of (i) sin A cos C + cos A sin C (ii) cos A cos C – sin A sin C ...

Math, 6 months ago

plz help me out.................

History, 1 year ago

Explain what is meant by Industrial Revolution...

Math, 1 year ago

determine which of the following polynomials has (x+1) a factor: xcube+xsquare+x+1...

Math, 1 year ago

PLS ANS FAST LOOK BELOW!!

Physics, 1 year ago

a body is projected horizontally from the top of a hill with 30 metre per second if g is equal to 10 M per second the velocity of the body after 4 seconds...

Science, 1 year ago

What are the properties of the elements that make up this compound (Na, H, C, and O)...