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

cotpie/20.cot3pie/20.cot5pie/20.cot7pie/20.cot9pie/20

cotpie/20.cot3pie/20.cot5pie/20.cot7pie/20.cot9pie/20

Grade:12th pass

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
5 years ago
Dear Student,

cot5pie/20 = cotpi/4 = 1
cotpie/20 = cot(pi/2 – cot9pi/20) = tan9pi/20
cot3pi/20 = cot(pi/2 – 7pi/20) = tan7pi/20
and we know that cotx * tanx = 1.
Therefore. Final answer would be = 1.

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