Dear Student, A=45°Also, tan 45°=1Hence tan2A=tan245°=1×1=1 Regards

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Dear Student,

A = 45 ° A l s o, \tan 45 ° = 1 H e n c e \tan^{2} A = \tan^{2} 45 ° = 1 \times 1 = 1

Regards.

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