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co
Step-by-step explanation:
convert all the term in sin and cos and proceed further
sin/cos+1/cos -1=sin+1-cos/cos
sin/cos+1+1/cos=sin+cos+1/cos
(sin+1)^2 -cos^2/cos^2
sin^2+1 +2sin-cos^2/cos^2
2sin^2+2sin/cos^2
2sin(1+sin)/1-sin^2= 2sin/1-sin
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