Basic Trignometry quiz
Q.1)If A = 30° and B = 60° verify that sin(A + B) = sin A × cos B + cos A × sin B
Q.2)Evaluate (cos45°+sin60°)/(sec30°+cosec30°)
Q.3)prove that (sinØ-cosØ+1)/(sinØ+cosØ-1) = 1/(secØ-tanØ)
Q.4) If sin A = 3/4, calculate cosA and tanA
Q.5)If 15 cotA = 8, find sinA and secA
Q.6)Evaluate: sin 60°cos30°+sin30°cos60°
Q.7)if sin x + cos y = 1, x=30° and y is an acute angle, then find y
Q.8) In triangle ABC, right angled at B, if tanA = 1/root3 then find the value of:
i) sinA cosC + cosA sinC
ii) cosA cosC - sinA sinC
Q.9) If 3 cot A=4, check whether:
(1-tan²A)/(1+tan²A) = cos²A-sin²A or not
Q.10) Evaluate: 2tan²45° + cos²30° - sin²60°
Q.1)If A = 30° and B = 60° verify that sin(A + B) = sin A × cos B + cos A × sin B
Q.2)Evaluate (cos45°+sin60°)/(sec30°+cosec30°)
Q.3)prove that (sinØ-cosØ+1)/(sinØ+cosØ-1) = 1/(secØ-tanØ)
Q.4) If sin A = 3/4, calculate cosA and tanA
Q.5)If 15 cotA = 8, find sinA and secA
Q.6)Evaluate: sin 60°cos30°+sin30°cos60°
Q.7)if sin x + cos y = 1, x=30° and y is an acute angle, then find y
Q.8) In triangle ABC, right angled at B, if tanA = 1/root3 then find the value of:
i) sinA cosC + cosA sinC
ii) cosA cosC - sinA sinC
Q.9) If 3 cot A=4, check whether:
(1-tan²A)/(1+tan²A) = cos²A-sin²A or not
Q.10) Evaluate: 2tan²45° + cos²30° - sin²60°
