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
Menu
Grade: 11
        
SIN PI /14 X SIN 3 PI / 14 X  SIN5PI/14 X  SIN7PI/14 X SIN9 PI/14 X SIN 11PI /14 X SIN 13PI/14=_________________
  1. 1/8
  2. 1/16
  3. 1/32
  4. 1/64
PLZZ GIVE SMALL SOLN ACCORDING TO JEE
 
one year ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
2419 Points
							combine first and last term then 2ndand 2ndlast term and so on and use sin(A)* sin(B) = (0.5)*((cos A+B)-cos(A-B))
						
10 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 31 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details