Question

sin A-cos A+1/ sin A+cosA-1=
sinA+1/cosA

Answer 1

QUESTION :

• sin A-cos A+1/ sin A+cosA-1=

sinA+1/cosA

ANSWER :

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

• Divide each term by cosA

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

• [tanA + secA - ( [math]sec^2 A - tan^2 A [/math])] /

• ( 1 - secA + tanA)

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

• tanA + secA

• (sinA / cosA )+ 1 / cosA

• (sinA + 1 )/ cosA

• Hence Proved

HOPE IT HELPS YOU

• IF U NOT UNDERSTAND YOU CAN REFER TO ATTACHMENT