Question

prove that secA (1-sinA)(secA+tanA)=1​

Answer 1

Step-by-step explanation:

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➡️ sec A ( 1 - sin A ) . ( sec A + tan A )

$\frac{1}{cosA}\times{(1-sinA)}\times\frac{1}{cosA}{+}\frac{sinA}{cosA}$

$\frac{1-sinA}{cosA}\times\frac{1+sinA}{cosA}$

$\frac{1-sin^{2}A}{cos^{2}A}$

$\frac{cos^{2}A}{Cos^{2}A}$

→ 1

Hence proved

Answer 2

Step-by-step explanation:

Search on google or ask your teacher bro .