Visualisation of Trigonometric Ratios Using a Unit Circle
Trending Questions
Q. In the given figure, PR is a tangent to the unit circle. Find the length of tangent PR.
- cosecθ
- tanθ
- cosθ
- cotθ
Q.
Five of the angles of a hexagon are each . Calculate the measure of the sixth angle .
Q. Which of the following is not a trigonometric ratio?
- sin
- cos
- con
- tan
Q.
If A, B and C are the interior angles of a right-angle triangle, right-angled at B then find the value of A, given that tan2A=cot(A–30∘) and 2A is an acute angle.
Q.
Find the measure of ifand
Q. Prove that:
cos Asin(90∘−A)+sin Acos(90∘−A)=2
cos Asin(90∘−A)+sin Acos(90∘−A)=2
Q. Find the value of cos0∘+sin90∘+√2sin45∘
Q.
If the angles of a quadrilateral are , then find the angles.
Q. What is the value of cos 712 ?
Q. Without using trigonometric tables, evaluate that :
cos(40∘+θ)−sin(50∘−θ)+cos240∘+cos250∘sin240∘+sin250∘
cos(40∘+θ)−sin(50∘−θ)+cos240∘+cos250∘sin240∘+sin250∘
Q. Find the value of sin(−210∘)
Q. Find the value of
cos60o×cos30o+sin60o×sin30o
cos60o×cos30o+sin60o×sin30o