Question

Q 23 please help the best will.be the brainliest

Answer 1

Answer:multiply the denominator and numerator by denominator and solve it

Step-by-step explanation:

Answer 2

It is a common question in Trigonometry , we can found this in many books and exams.

Here is the solution -

=(sinA + 1 - cosA) / (cosA - 1 + sinA)

Divide each term by cosA

=(tanA + secA - 1) / (1 - secA + tanA)

=[tanA + secA - ( sec2A−tan2A)] /

( 1 - secA + tanA)

= (tanA+secA)( 1 - secA + tanA )/(1 - secA + tanA)

= tanA + secA

= (sinA / cosA )+ 1 / cosA

= (sinA + 1 )/ cosA

Hence Proved

Hope it will help you