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

Prove that tanA.tan(60+A)+tan(60+A)tan(60-A) +tan(60-A)tanA=-3

Prove that 
tanA.tan(60+A)+tan(60+A)tan(60-A)
                      +tan(60-A)tanA=-3

Grade:12

1 Answers

Lab Bhattacharjee
121 Points
5 years ago
\text{HINT : Use } \tan\{(60^\circ+A)-A\} \\ \tan\{A+(60^\circ-A)\} \\ \tan\{(60^\circ+A)+(60^\circ-A)\}

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free