1) 9sec²A- 9tan²A = a) 1 b) 9 c) 8 2) If cos A=4/5, then tanA=? a) 3/5 b) 4/3 c) 3/4 3) Which type of triangle is related to trigonometry? a) Right angled triangle b) Equilateral triangle c) Isosceles triangle 4) Which of the following is the correct Trigonometric ratio? a) Sin ratio=Hypotenuse/Opposite side b) Cos ratio=Hypothenuse/Adjacent Side c) Sin ratio=Opposite side/Hypotenuse 5) (Sin30°+cos30°)-(sin60°+cos60°) a) 0 b) -1 c) 1

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