look i am sending u a trick
plz. rate me for it......
when u want to get some inverse, then just exchange the places of x and y. u can know it if u apply pure logic. remember: (f inv.) is reflection of f on line y=x
like here-
x=(2y-pie)3 +2y- cosy ............... A y =f(x)
this is the inv. of given fn.
now see for x=pie we get y=pie/2 as one ans.
so differentiate A....
and put y=pie/2 as x=pie
putting values we can get ans.
if any prob. nudge me!! or else...
PLZ. RATE ME IF U LIKE IT. i request it to all of u....
Moderation Team
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)^3 +2x-cosx. the value of d/dx f inverse of x,x=
