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Maths-

General

Easy

Question

If $fraction numerator sin invisible function application 2 alpha minus sin invisible function application 3 alpha plus sin invisible function application 4 alpha over denominator cos invisible function application 2 alpha minus cos invisible function application 3 alpha plus cos invisible function application 4 alpha end fraction equals tan invisible function application k alpha$ is an identity then the value of k is equal to -

2
3
4
6

The correct answer is: 3

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The expression $fraction numerator sin invisible function application 22 to the power of ring operator cos invisible function application 8 to the power of ring operator plus cos invisible function application 158 to the power of ring operator cos invisible function application 98 to the power of ring operator over denominator sin invisible function application 23 to the power of ring operator cos invisible function application 7 to the power of ring operator plus cos invisible function application 157 to the power of ring operator cos invisible function application 97 to the power of ring operator end fraction$ when simplified reduces to -

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