Question

help............urgently​

Answer 1

Answer:

Step-by-step explanation:

considering:

3/5 =cos a

so 4/5= sin a

And a= tan -1 (4/3)

y=1/(5(cos a sin x -sin a cos x)+7)

y=1/(5 sin (x-a)+7)

we know -1 <sin (x-9)<+1

Hence y will be maximum when sin (x+a)= -1  

So y maximum= 1/5(-1)+7 =1/2

and y will be minimum when sin(x+a)

so y minimum=1/5.1 +7 =1/2

HOPE .THIS IS HELPFUL  

Answer 2

Answer:

Riya I am back nagajeeshnu

Step-by-step explanation:

I think it is helpful