Teaching Chandigarh JBT PRT Mock Test 2023-24 Mathematics Trigonometry Trigonometric Identities

यदि cos θ - sin θ = √2 sin θ है, तब (cos θ + sin θ) है:

1
- √2 cos θ 
2
√2 cos θ
3
√2 tan θ
4
- √2 sin θ
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