Question 1
Find the exact value of tan(15°).
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- Quant - Geometry
Basics of Trigonometry Level - 2
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Question 2
Find the exact value of cos(22.5°).
Question 3
Evaluate sin75°cos15° − cos75°sin15°.
Question 4
Evaluate tan(22.5°) + cot(22.5°).
Question 5
Find the exact value of sin(15°) + cos(15°).
Question 6
Evaluate the expression:
$$\frac{\tan(75^\circ) - \tan(15^\circ)}{1 + \tan(75^\circ)\tan(15^\circ)}$$Question 7
Find the exact value of tan(67.5°) − tan(22.5°).
Question 8
Evaluate 8sin15°.cos15°.cos30°.
Question 9
Find the value of:
$$\frac{1 - \tan^2(22.5^\circ)}{1 + \tan^2(22.5^\circ)}$$Question 10
Evaluate cos(22.5°).cos(67.5°).