Thank you for registering.

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

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

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

if x = y = z, then cos^2x + cos ^2y + cos^2z –2 cosx cosy cosz is

if x = y = z, then cos^2x + cos^2y + cos^2z –2 cosx cosy cosz is

Grade:11

2 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
Hello student, Please find the answer to your question below

cos^2x + cos^2y + cos^2z –2 cosx cosy cosz
= 3 cos^2x- 2 cos^3x
= cos^2x (3 – 2 cos x)
….….….….….….…..


Thanks
Jeremy
11 Points
5 years ago
(cos 40)^2 + (cos 70)^2 + (cos ∂) = 1
  • Solve for ∂ …............................................. Thanks

Think You Can Provide A Better Answer ?

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

ASK QUESTION

Get your questions answered by the expert for free