(sin θ + cos θ)2 = 2, 0o < θ < 90o, then the value of θ is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e π/4
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Understanding Tricks |
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Application The best method Put the value of θ from the given options So Take θ = 45 |
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Hence (sin θ + cos θ)2 (sin 45 + cos 45)2 (1/√2 +1/√2)2 (2/(2)2 = 2 |
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So This value is satisfied. Hence θ = 45 = π/4 |