Question

Sin²A + 1/1+Tan²A =1​

Answer 1

Answer:

$sin^{2} A + 1/1+tan^{2} A = sin^{2} A + 1/sec^{2}A = sin^{2} A + cos^{2} A = 1$

Step-by-step explanation:

Basic identities are used here in solving this question.

$1 + tan^{2}A = sec^{2}A \\ sin^{2}A + cos^{2}A = 1$

1/secA = cosA