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The acute angle between the plane 5x-4y+...

The acute angle between the plane `5x-4y+7z=13` and the y-axis is givne by (A) `sin^-1(5/sqrt(90))` (B) `sin^-1((-4)/sqrt(90))` (C) `sin^-1(7/sqrt(90))` (D) `sin^-1(4/sqrt(90))`

A

`sin^(-1)(5/sqrt(90))`

B

`sin^(-1)(-4/sqrt(90))`

C

`sin^(-1)(7/sqrt(90))`

D

`sin^(-1)(4/sqrt(90))`

Text Solution

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The correct Answer is:
D
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