ConceptTrigonometric Ratios of Some Specific Angles

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#### Question

Choose the correct option and justify your choice.

`(1- tan^2 45°)/(1+tan^2 45°) `

(A) tan 90°

(B) 1

(C) sin 45°

(D) 0

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#### Reference Material

Solution for question: Choose the correct option and justify your choice. (1- tan^2 45°)/(1+tan^2 45°) concept: Trigonometric Ratios of Some Specific Angles. For the course CBSE