JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

1 Medium

1 of 1

Application +4 | -1

2 \cos \theta+\sin \theta=1

, then

7 \cos \theta+6 \sin \theta

equals

View answer and explanation

Correct option: D

2 or 6

Option D (2 or 6) is correct because by using trigonometric substitutions and solving the resulting quadratic equation, we find two possible values for the expression

7 \cos \theta+6 \sin \theta

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