Introduction to Trigonometry — Important Questions
Madhya Pradesh Board · Class 10 · Mathematics
130 important questions from Introduction to Trigonometry for Madhya Pradesh Board Class 10 Mathematics, with answers. Written for the board exams 2027.
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Important Questions from Introduction to Trigonometry
What is the value of sin 90°?
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1
At 90°, the sine value is 1, representing the maximum height on the unit circle.
What does cosec θ represent?
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1/sin θ
Cosecant is the reciprocal of sine, defined as 1/sin θ.
What is tan 45°?
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1
In a 45-45-90 triangle, tan 45° equals 1 because the opposite and adjacent sides are equal.
The value of cos 0° is:
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1
At 0°, the cosine value is 1, representing the maximum horizontal projection.
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