Can i get a way to do this question
1-sina+cosa/sina+cosa-1=1+cosa/sina
Answers
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2
Answer:
L.H.S=
cosA+sinA−1
1−cosA+sinA
×
cosA+sinA−1
cosA+sinA−1
=
(cosA+sinA)
2
−1
cosA+sinA+1−cos
2
A−cosAsinA−cosA+sinAcosA+sin
2
A+sinA
=
cos
2
A+sin
2
A+2cosAsinA−1
1−cos
2
A+sin
2
A+2sinA
=
1+2cosAsinA−1
2sin
2
A+2sinA
=
2cosAsinA
2sinA(sinA+1)
=
cosA
(sinA+1)
=R.H.S
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