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Home › UP Board Class 10 › mathematics › intro_trigonometry › In a right triangle, cos A · sec A equals:

In a right triangle, cos A · sec A equals:

Atan A
B0
C1
Dsin A
Answer & Solution
Correct answer: C. 1
sec A is defined as 1/cos A, so cos A · sec A = cos A · (1/cos A) = 1.
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