If cos(theta) = 3/5, what is the value of (1 + tan^2(theta))?

Topic: Trigonometry
Subtopic: Trigonometric Identities

A16/9

B25/9

C25/16

D9/16

Explanation

1 + tan^2(theta) = sec^2(theta) = 1 / cos^2(theta) = 1 / (3/5)^2 = 1 / (9/25) = 25/9.

Exam Relevance

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