Trigonometric Ratios
Math ⇒ Trigonometry
Trigonometric Ratios starts at 9 and continues till grade 12.
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See sample questions for grade 11
Explain why tan 90° is undefined.
If cos θ = -1/2 and θ is in the third quadrant, what is the value of sin θ?
If sin θ = 0.6 and θ is in the second quadrant, what is the value of cos θ?
If sin θ = 0.8 and θ is in the first quadrant, find tan θ.
If sin θ = 3/5 and θ is in the first quadrant, find cos θ.
If sin θ = 5/13 and θ is in the second quadrant, what is the value of cos θ?
If tan θ = 1, what are the possible values of θ between 0° and 360°?
If tan θ = 2/3, find sin θ and cos θ, given that θ is in the first quadrant.
If the adjacent side to angle θ in a right triangle is 7 units and the hypotenuse is 25 units, find cos θ.
If the hypotenuse of a right triangle is 10 units and the side opposite to angle θ is 6 units, find sin θ.
State the formula for tan (A + B) in terms of tan A and tan B.
State the Pythagorean identity involving sin θ and cos θ.
State the range of values for sin θ for all real θ.
State the relationship between sec θ and cos θ.
What is the value of sin 90°?
Given that sin θ = 0.4 and θ is an obtuse angle, find the value of cos θ.
Given that tan A = 2 and tan B = 3, find tan(A + B).
If sec θ = 13/5 and θ is in the fourth quadrant, find the values of sin θ and cos θ.
If sin θ = -3/5 and θ is in the third quadrant, find the exact values of cos θ and tan θ.
If tan θ = -1 and θ is between 180° and 360°, what is the value of θ?
