Math, asked by djhsmhamzanulwalasha, 18 days ago

if tanA + cosA = 3, find the value of tan²A + cos²A

Answers

Answered by krrishagrawal724

0

Answer:

sec²A-tan²A = 1. sec²A = 1+tan²A. sec²A = 1+(3/4)². sec²A = 1+9/16 = (16+9)/16 = 25/16.

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