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: 9

                        

A+B=300°={1+root3 cotA} {1+root3 cotB} =? I want process

4 years ago

Answers : (2)

Sourabh Singh
IIT Patna
askIITians Faculty
2104 Points
							243-284_capture.PNG
						
4 years ago
Sahithya varma
15 Points
							
A + B=300
A +B=(360-60)
multiply cot on both sides 
cot(A + B) =cot(360-60)
cotAcotB-1/cotA +cotB=–cot60
cotAcotB-1/cotA+cotB=–1/root3
root3cotAcotB-root3=–cotA–cotB
root3cotAcotB+cotA+cotB=root3
cotA(1+root3cotB)+cotB=root3
Multiply root3 on both sides 
root3cotA(1+root3cotB)+cotA=(root3)(root3)
(1+root3cotA)(1+root3cotB)=3
 
one year 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