Math, asked by diyasingla000, 8 months ago

Find the value of (sec A + tan A – 1)(sec A – tan A – 1).​

Answers

Answered by sathyamargerate0410
0

Step-by-step explanation:

(secA+(tanA+1)) (secA-(tanA+1))

(sec²A-(tanA+1)²)

(sec²A-(tan²A-2tanA+1))

(sec²A-tan²A+2tanA-1)

(1+2tanA-1)

2 tanA

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