1.

Solve the following equations for x:(i)(ii)(iii) tan−1(x −1) + tan−1x tan−1(x + 1) = tan−13x(iv) tan−11-x1+x-12tan−1x = 0, where x > 0(v) cot−1x − cot−1(x + 2) = π12, x > 0(vi) tan−1(x + 2) + tan−1(x − 2) = tan−1879, x > 0(vii) tan-1x2+tan-1x3=π4, 0<x<6(viii)(ix)

Answer» Solve the following equations for x:

(i)



(ii)

(iii) tan
−1(x −1) + tan−1x tan−1(x + 1) = tan−13x

(iv)
tan−11-x1+x-12tan−1x = 0, where x > 0

(v) cot
−1x − cot−1(x + 2) = π12, x > 0

(vi) tan
−1(x + 2) + tan−1(x − 2) = tan−1879, x > 0

(vii)
tan-1x2+tan-1x3=π4, 0<x<6

(viii)

(ix)


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