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: 11
        
If α = π/14 , then the value of (tan α tan 2α + tan 2α tan 4α + tan 4α tan α) is
one year ago

Answers : (1)

Aditya Gupta
2014 Points
							
we see that α+2α+4α=pi/2
taking tan both sides and applying the formula tan(x+y+z)= [tanx+tany+tanz – tanxtanytanz]/[1 – (tanxtany+tanytanz+tanztanx)], we get
 [tanα+tan2α+tan4α – tanαtan2αtan4α]/[1 – (tanαtan2α+tan2αtan4α+tanαtan4α)]= not defined.
but this is possible only when the denominator is zero, ie
1 – (tanαtan2α+tan2αtan4α+tanαtan4α)=0
or 1= tanαtan2α+tan2αtan4α+tanαtan4α
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