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If x/a+y/b=2 touches the curve x^n/a^n+y...

If `x/a+y/b=2` touches the curve `x^n/a^n+y^n/b^n=2` at the point `(alpha,beta)` then:

A

a)`alpha=a^2,beta=b^2`

B

b)`alpha=a,beta=b`

C

c)`alpha=-2a,beta=4b`

D

d)`alpha=3a,beta=-2b`

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The correct Answer is:
B
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