×

#### 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 the following: tan3A*tan2a*tanA = tan3A-tan2A-tanA co(A+15)-tan(A-15) =4cos2A/1+2sin2A
prove the following:	tan3A*tan2a*tanA = tan3A-tan2A-tanA	 co(A+15)-tan(A-15) =4cos2A/1+2sin2A

```
2 years ago

Arun
25768 Points
```							Dear Purva Please ask only one question in one thread. As we know tan 3A = tan (2A+ A) tan 3A = tanA + tan2A / 1 – tan A tan2A tan 3A – tan A tan 2A tan3A = tan A + tan 2A tan 3A – tan2A – tanA = tan 3A * tan 2A* tanA hence proved
```
2 years 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