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Q1 FIND OUT FOR WHAT INTEGRAL VALUES OF N THE NUMBER VALUES OF N THE NUMBER 3 IS 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 2logx+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= 2logx +8
→ x=10
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