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1 - tan^245°/1+tan^...
 
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1 - tan^245°/1+tan^245° = (A) tan 90° (B) 1 (C) sin 45° (D) 0

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Choose the correct option and justify your choice:

1 - tan245°/1+tan245° =

(A) tan 90°

(B) 1

(C) sin 45°

(D) 0

1 Answer
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Correct option: (D) 0

Explanation:

Substitute the of tan 45° in the given equation

tan 45° = 1

1-tan245°/1+tan245° = (1-12)/(1+12)

= 0/2 = 0

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