i think i have done it correctly lets see log3x2+4x+5=y x2+4x+5 is always greater than 0 for any value of x. so max value of the function is infinity to calculate minimum x2+4x+5 differentiating and equating we get =0 2x+4=0 ie x=-2 therefore function has minima at x=-2 therefore value of x2+4x+5 is 1 log3 1 =y so y=0; so the ans is (0,infinity) tell me if it is right
rate me please
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