Q1. tan θ is undefined for:
Q2. If angle A + angle B = 90°, then:
Q3. tan 45° =
Q4. cos θ =
Q5. cosec²θ – cot²θ =
Q6. If tan θ = √3, then θ =
Q7. If cos θ = 0, θ =
Q8. Trigonometric ratios are defined for which triangle?
Q9. sin θ =
Q10. If sin θ = 0, then θ =