1) What does sin(θ) represent in a right-angled triangle? a) Opposite / Hypotenuse b) Adjacent / Hypotenuse 2) Which formula correctly represents cos(θ)? a) Adjacent / Hypotenuse b) Opposite / Adjacent 3) The correct ratio for tan(θ) is: a) Opposite / Adjacent b) Adjacent / Opposite 4) Which trigonometric ratio is the reciprocal of sin(θ)? a) sec(θ) b) cosec(θ) 5) Which statement is TRUE? a) sec(θ) = 1 / cos(θ) b) sec(θ) = 1 / sin(θ) 6) cot(θ) is the reciprocal of: a) cos(θ) b) tan(θ) 7) Which pair is correctly matched as a trigonometric ratio and its reciprocal? a) tan(θ) and cot(θ) b) sin(θ) and sec(θ) 8) How do you find cosec(θ)? a) 1 ÷ cos(θ) b) 1 ÷ sin(θ) 9) In the trigonometric formulas, the letter h represents: a) Hypotenuse b) Height 10) Which statement is INCORRECT? a) cos(θ) = a / h b) cos(θ) = o / h

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