Question

if tan -1(1)+tan-1(x)=0then x
a 0
b 1/2
c Pai/4
d -1​

Answer 1

Answer:

1/(1-a)(1-b)( 1-c)+1/(1-b) (1-c) (1-d)+1/(1-c)

(1-d) (1-a)+1/(1-d)( 1-b) (1-a) .

By taking LCM,

=4-[a+b+c+d] / [1-a][1-b][1-c][1-d]

=4-4 / [1-a][1-b][1-c][1-d]

=0

Step-by-step explanation:

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