What is the value of cos 8 x- -A- cos 2 x-sin 2 xB- sin 2 4 x-cos 2 4 xC- sin 2 2 x-cos 2 2 xD- cos 2 4 x-sin 2 4 x

The correct option is D cos24x – sin24x ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Standard Values of Trigonometric Ratios

What is the v...

Question

What is the value of cos8x=?

cos²x – sin²x

No worries! We‘ve got your back. Try BYJU‘S free classes today!

sin²4x - cos²4x

No worries! We‘ve got your back. Try BYJU‘S free classes today!

sin²2x – cos²2x

No worries! We‘ve got your back. Try BYJU‘S free classes today!

cos²4x – sin²4x

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

Suggest Corrections

Similar questions

s i n^{2} x + s i n^{2} 2 x - s i n^{2} 3 x - s i n^{2} 4 x = 0.

s i n^{2} x + s i n^{2} 2 x + s i n^{2} 3 x + s i n^{2} 4 x = 2.

{sin}^{2} 4 x + {cos}^{2} x = 2 sin 4 x {cos}^{4} x

x

If $s i n^{2} 4 x + c o s^{2} x = 2 s i n 4 x . c o s^{4} x$ then number of values of x satisfying, if $x \in [- 2 π, 2 π]$ is

Join BYJU'S Learning Program