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: 8
        
The maximum and minimum value of the question cos²(45-x)+(sinx-cosx)²
11 months ago

Answers : (1)

Aditya Gupta
1672 Points
							
On expanding the entire term, we get
(1+2sc)/2+ 1-2sc, where s and c are sinx and cosx.
This is equal to 3/2-sc. But sc= sin2x/2. So it becomes
(3-siny)/2, y=2x
As sinx lies in -1 to 1 so the above expression lies in 1 to 2. Hence minimum and maximum values are 1 and 2 respectively
11 months 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