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TRIGONOMETRIC FUNCTIONS — MATHS STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceMATHSTRIGONOMETRIC FUNCTIONS1 Mark
MCQ
Let a, b be such that $\pi<\alpha-\beta<3\pi \text{ D}$ If $\sin\alpha+\sin\beta=-\frac{21}{65}$ and, $\cos\alpha+\cos\beta=-\frac{27}{65} .$ then the value is $\alpha-\frac{\beta}{2}$
  • A
    $\frac{-6}{65}$
  • B
    $\frac{3}{\sqrt{130}}$
  • C
    $\frac{6}{65}$
  • ✓
    $\frac{-3}{130}$
✓

Answer

Correct option: D.
$\frac{-3}{130}$
  1. $\frac{-3}{130}$

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