Ch 03 -Trigonometric Functions — Practice Quiz
ICSE · Class 11 · Mathematics
Try a 4-question quiz on Ch 03 -Trigonometric Functions for ICSE Class 11 Mathematics: tap an answer to check it and see why.
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Quick Quiz: Ch 03 -Trigonometric Functions
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What is the value of 180° in radians?
The arc length formula is l = rθ. Here θ must be in:
What is sin 30°?
What is cos 60°?
Sample Questions
What is tan 45°?
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1
tan 45° = sin45°/cos45° = (1/√2)/(1/√2) = 1.
sin²x + cos²x equals:
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1
sin²x + cos²x = 1 is the fundamental Pythagorean identity, derived from the unit circle equation x²+y²=1.
The period of the function sin x is:
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2π
sin x has period 2π (one full revolution on the unit circle). tan x has period π.
The period of the function tan x is:
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π
tan x has period π because tan(π+x)=tanx. sin and cos have period 2π.
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