Question

Help me in this question​

Answer 1

R1- R1+R3

So in 1 st row its

0. 0. 2

Now expand

2( sin^2 +1)

Now in ( 3pie/4, 5pie/4)

sin^2 max value occurs at 3pie/4 and 5 pie/4 and minimum at pie

So Sin^2 3pie/4 = 1/2

So 2( 1/2 +1) = 3 is max value

Minimum is 2( 0+1) = 2

So its value lies between

(3/2, 3] ( most accurate option)

So its 4)

Answer 2

please mark it as the brainliest if it helps you