If $a \cos A-b \sin A=c$, then $a \sin A+b \cos A$ is equal to

JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

1 Easy

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Application +4 | -1

a \cos A-b \sin A=c

, then

a \sin A+b \cos A

is equal to

View answer and explanation

Correct option: A

\pm \sqrt{a^2+b^2-c^2}

Option A (

\pm \sqrt{{a^2+b^2-c^2}}

) is correct because it is derived by squaring both the given equation and the expression to be found, then adding them.

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