Math, asked by aditigawande05, 3 months ago

13: Prove that sec A (1 - sin A)(sec A+ tan A) = 1.

Answers

Answered by nikitashrestha1654

1

multiply secA with 1-sinA

SecA- secAsinA (secA + tanA)

secA- 1/cosAxsinA ( secA+TanA)

(SecA-TanA)(SecA+TanA)

Sec²A-Tan²A

1

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