MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
raman malik Grade: 12
        

more than one options may be correct


Q. for an +ve integer n, let fn(x)= {tan(x/2)}(1+secx)(1+sec2x)(1+sec4x).............(1+sec2nx). Then


(a)f2(pie/16)


(b)f3(pie/32)


(c)f4(pie/64)


(d)f5(pie/128)


 


 


 


 


 


 


 

7 years ago

Answers : (2)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear raman


fn(x)= {tan(x/2)}(1+secx)(1+sec2x)(1+sec4x).............(1+sec2nx).


simplyfy first bracket 


       =tanx/2 (2cos2(x/2) /cosx))(1+sec2x)(1+sec4x).............(1+sec2nx).


        =tanx (1+sec2x)(1+sec4x).............(1+sec2nx).


 similery solve other bracket also 


  fn(x) =tan2nx  


Please feel free to post as many doubts on our discussion forum as you can.
 If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
 We are all IITians and here to help you in your IIT JEE  & AIEEE preparation.


 All the best.
 
Regards,
Askiitians Experts
Badiuddin

7 years ago
Priyansh Goel
21 Points
										

Ans is ABCD.

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 13,000 off
USE CODE: JEE1

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details