Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
Close
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

⇐ BackProceed to Checkout ⇒
There are no items in this cart.
Continue Shopping

What will be the final result of cos4x? Is it 2sin2x? How

What will be the final result of cos4x? Is it 2sin2x? How

Grade:11

1 Answers

Himanshu
389 Points
5 years ago
cos4x = cos2(2x) = cos^2(2x)-sin^2(2x)
= (cos^2x-sin^2x)^2 – (2sinxcosx)^2
=cos^4x+sin^4x-2sin^2xcos^2x – 4sin^2xcos^2x
then solve you can get the required results
 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Trigonometry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Register ICAT

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More