×

#### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Click to Chat

1800-1023-196

+91-120-4616500

CART 0

• 0

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

Prove that Sin25 degree+cos25 degree/sin25 degree-cos25 degree=tan110 degree
Prove that Sin25 degree+cos25 degree/sin25 degree-cos25 degree=tan110 degree


2 years ago

Susmita
425 Points
							Divide numerator and denominator by cos25°.$\frac{tan25� +1}{tan25� -1}$$=\frac{-(tan25� +1)}{1-tan25�}$$=\frac{-(tan25� +tan45)}{1-tan25�tan45}$ $=-tan(25+45)=-tan70=tan(180-70)=tan110$In the 3rd line we have replaced 1 by tan45.In the 4th line we have incorporated tan(A+B) formula.Please approve the answer if you are helped.

2 years ago
Samyog Sapkota
15 Points
							First Dividing numerator and denominator by cos25 .= 1 + TAN 25 / 1-TAN25= TAN 45 + TAN 25 / 1- TAN 45 TAN 25 = TAN ( 45 + 25 ) TAN 70 HOPE YOU UNDERSTOOD

4 months ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Trigonometry

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

Post Question