WB Police PC · Elementary Mathematics
Trig ratios and basic identities.
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Q1 · Trigonometry · EASY
If sin θ = 3/5 and θ is an acute angle, what is the value of cos θ?
Q2 · Trigonometry · EASY
What is the value of (sin 30° + cos 60°)?
Q3 · Trigonometry · MEDIUM
If tan A = 1, then what is the value of (sin A × cos A)?
Q4 · Trigonometry · MEDIUM
If sin θ + cos θ = √2, then what is the value of sin θ × cos θ?
Q5 · Trigonometry · MEDIUM
If sin θ = 3/5, then what is the value of cos θ? (Assume θ is acute)