Q1 FIND OUT FOR WHAT INTEGRAL VALUES OF N THE NUMBER VALUES OF N THE NUMBER 3IS A PERIOD OF THE FUNCTION ; f(x)= COSNX.SIN(5/X)Q2 FIND THE INVERSE OF f(x) = 2LOGX+8. &HENCE SOLVE THE EQUATION f(x)= f -1(x)

i'm unable to understand ur first ques.......plz post it properly

ans for Q2 is x=10

let 2^logx+8=y

→ logx=log(y-8)/log2

→ x=10^{{log(y-8)/log2}}

→ f^-1(x) = 10^{{log(y-8)/log2}}

f(x)=f^-1(x) only wen y=x

→ x= 2^logx +8 

→ x=10