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If f(x)=log((1+x)/(1-x)),t h e n (a)f(...

If `f(x)=log((1+x)/(1-x)),t h e n` (a)`f(x_1)f(x_2)=f(x_1+x_2)` (b)`f(x+2)-2f(x+1)+f(x)=0` (c)`f(x)+f(x+1)=f(x^2+x)` (d)`f(x_1)+f(x_2)=f((x_1+x_2)/(1+x_1x_2))`

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  18. If y=xln((a x)^(-1)+a^(-1)) prove that x(x+1)(d^2y)/(dx^2)+(dy)/(dx)=y...

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  19. If the solution of the equation |(x^4-9)-(x^2+3)|=|x^4-9|-|x^2+3| is ...

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