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Download Class X : HOTS Question Answers: Math Unit - 6 (Trigonometry)

Submitted by guru on Thu, 02/25/2010 - 18:10

Class X : HOTS Question Answers: Math Unit - 6 (Trigonometry)

Trigonometry

1.             If xcosθ – ysinθ = a, xsinθ + ycos θ = b, prove that x2+y2=a2+b2.

2.            Prove that sec2θ+cosec2θ can never be less than 2.

8.            If A, B are acute angles and sinA= cosB, then find the value of A+B.



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