state gov DDA Junior Secretariat Assistant (JSA) Mock Test 2023 Quantitative Aptitude Trigonometry

What is the value of \(\rm\frac{\sin (A+B)}{\sin A \cos B}\)?

1
1 + cot A tan B
2
1 + tan A cot B
3
1 – sin A cos B
4
1 − cot A tan B
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