Solve
Sin(2x) > Squart(2)*Sinx^2 + ( 2 - Squart2 )*Cosx^2

Asked by sudhanshubhushanroy | 15th Nov, 2017, 08:42: PM

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

Answered by Arun | 20th Dec, 2017, 11:08: AM