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CBSE Class 11-science Answered

Solve
Sin(2x) > Squart(2)*Sinx^2 + ( 2 - Squart2 )*Cosx^2
Asked by sudhanshubhushanroy | 15 Nov, 2017, 08:42: PM
answered-by-expert Expert Answer
 
begin mathsize 16px style sin 2 straight x greater than square root of 2 sin squared straight x plus open parentheses 2 plus square root of 2 close parentheses cosx
sin 2 straight x minus square root of 2 sin squared straight x minus open parentheses 2 plus square root of 2 close parentheses cosx space greater than 0
put space sin squared straight x equals fraction numerator left parenthesis 1 minus cos 2 straight x right parenthesis over denominator 2 end fraction
bring space in comma space " straight a space sinx space plus straight b space cos space straight x " space format
so space ans space will space be
square root of straight a squared plus straight b squared end root greater than straight a space sinx space plus straight b space cos space straight x greater than negative square root of straight a squared plus straight b squared end root
adjust space terms space accordingly space to space get space required space value end style
Answered by Arun | 20 Dec, 2017, 11:08: AM
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