write the formula of cos³x
Answers
Answered by
32
Hey dear here is your answer!!!!!!
We know ,
cos 3 x = 4cos^3 x - 3 cos x
so value of cos^3 x = cos 3x + 3cos x /4
Hope it helps u dear....
☺️☺️☺️☺️
We know ,
cos 3 x = 4cos^3 x - 3 cos x
so value of cos^3 x = cos 3x + 3cos x /4
Hope it helps u dear....
☺️☺️☺️☺️
Answered by
14
The formula of cos³x is given below. It is essential to know that cos 3 x = 4cos^3 x - 3 cos x. Hence the value of cos^3 x is cos 3x + 3cos x /4.
It is otherwise given as cos 3X = (3/4) cos X + (1/4) cos (3X).
The formula for every element is given based on the pythagorean identities.
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