Home » Ask & Discuss » Mathematics. » Trignometry « Back to Discussion

Trignometry

Blazing goIITian

Joined:	24 Dec 2007
Post:	1111

5 Sep 2008 01:12:23 IST

0 People liked this

624

Find Max value

None

Find the max value of

4Sin^2(x) + 3Cos^2(x) +sin (x/2) +cos(x/2)

Share this article on:

Comments (1)

anchit saini

Blazing goIITian

Joined: 1 Feb 2008

Posts: 1251

5 Sep 2008 13:23:15 IST

Like 2 people liked this

$4Sin^2(x) + 3Cos^2(x) +sin (x/2) +cos(x/2) \\ \\<br/>= 3 + Sin^2(x) + \sqrt{1 + sin x} \\ \\<br/>\mbox{which is max when sin x =1}$

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team

Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info

Find Posts by Topics

Physics.

Topics

9401

20093

3672

2186

7617

2827

2638

Mathematics.

Chemistry.

Biology

Institutes

Parents

Board

Fun Zone