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
Menu
Grade: 10 

                        
TanA+sinA=m and tanA_sinA=n show that (m^2-n^2)=16mn
2 years ago

Answers : (2)

Arun
24738 Points 
							
m = tanA + sinA
n = tanA - sinA
L.H.S. = {(tanA + sinA)² - (tanA-sinA)²}
{tan²A + sin²A + 2tanAsinA - (tan²A + sin²A - 2tanAsinA)}²
⇒ = (4tanAsinA)²
16tan²Asin²A
16tan²A(1 - cos²A)
16tan²A - tan²Acos²A
16tan²A - sin²A/cos²A × cos²A
16tan²A - sin²A
16(tan²A + sin²A) (tan²A - sin²A)
= 16 mn   
2 years ago
Deepak Kumar Shringi
askIITians Faculty
4402 Points 
							562-2083_Capture.PNG
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Other Related Questions on Trigonometry

Prove that ((sina)/2-sqrt(1+sina))/(cosa/2-sqrt(1+sina))=4/5 Answer & Earn Cool Goodies
solve plz...sin 4 θ + sin 2 θ =1 and show now, tan 2 θ = 1+sin 2 θ Answer & Earn Cool Goodies
if alpha and beta are the roots of the equation 3cosx+4sinx=5 then cot(alpha+beta) equals
This is from trignometry chapter where we cqn use the formula of (sum and difference of the...
Plzz solve this question briefly … I attached the image of question
View all Questions »


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