cos∅/1-sin∅ - cos∅/1+sin∅ = 2 tan∅
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Step-by-step explanation:
taking L.C.M.
cos@(1+sin@)-cos@(1-sin@)/(1-sin@)(1+sin@)
cos@+cos@sin@-cos@+cos@sin@/1-sin^2@
2cos@sin@/1-sin^2@
2cos@sin@/cos^2@ :1-sin^2@=cos^2
by cutting
2sin@/cos@
2tan@
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