The abscissas of points P and Q on the c...

The abscissas of points P and Q on the cure `y = e^(x) + e^(-x)` such that tangents at P and Q make `60^(@)` with the x-axis are

A

(a) `"ln"((sqrt(3) + sqrt(7))/(7))"and ln"((sqrt(3) + sqrt(5))/(2))`

B

(b) `"1n" ((sqrt(3) + sqrt(7))/(2))`

C

(c) `"1n"((sqrt(7) - sqrt(3))/(2))`

D

(d) `+- "1n" ((sqrt(3) + sqrt(7))/(2))`

Text Solution

Verified by Experts

The correct Answer is:

B

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