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1. The trigonometric expression, cos70° cos40° - sin70° sin40° is also equal to which of the following?

     cos30°
     sin110°
     cos110°
     sin30°
     None of the Above

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2.  Which of the following represents the expression, 2sinA – sin2A?

     2sinA(1 – cosA)
     1 – cosA
     2sin2A
     2sinA(1 + cosA)
     None of the Above

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3. Which of the following is (cot x)/ (cosec x) equal to?

     sin x
     cos x
     tan x
     sec x
     None of the Above

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4.  In the third quadrant, which among the following trigonometric functions is positive?

     sin⊖
     sec⊖
     cot⊖
     cosec⊖
     None of the Above

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5. What is the radian measure of the angle 240°?

     3Π/4
     5Π/4
     2Π/3
     4Π/3
     None of the Above

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