badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

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
Menu
Grade: 8

                        

The value of 1+sin theta- cos theta/1+Sin theta+cos theta is ​ ​ ​

3 years ago

Answers : (2)

Arun
24742 Points
							
L.H.S = 1+sinx-cosx/1+sinx+cosx 
= 1+sinx-cosx(1+sinx+cosx)/1+sinx+cosx(1+s... 
=(1+sinx)^2-(cosx)^2/(1+sinx+cosx)^2 
=2sinx+2sin^2x/2+2sinx+cosx+2sinxcosx 
=2sinx(1+sinx)/2(1+sinx)+2cosx(1+sinx) 
=sinx/2cosx 
= tanx/2
3 years ago
Suraj Kumar
49 Points
							On multiplying the numerator and denominator by  (1+sinx+cosx) We get (1+sinx)^2-cos^2/(1+sinx +cosx)^2=(1+sin^2x+2sinx-cos^2x)/(1+sin^x+cos^2x+2sinx+2cosx+2sinx×cosx)=(2sinx+2sin^2x)/(1+1+2sinx+2cosx+2simx×cosx)=2sinx (1+sinx)/2(1+sinx)+2cosx (1+sinx)=2sinx (1+sinx)÷2 (1+sinx)[1+cosx]=Sinx/1+cosx
						
2 years 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