solve this
trigonometry problem!!
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L.H.S. = sinA - cosA +1/sinA+cosA-1
= sinA - ( cosA -1)/ sinA +( cosA -1)
multiply numerator & denominator by numerator
= { sinA^2 - (cosA-1)^2/ [ sinA + cosA-1]^2
= [sin^2A-cos^2A+2cosA-1]/sin^2A+cos^2A+1+...
={ 2cosA - cos^2A-(1-sin^2A)}/ {2+ 2sinAcosA-2sinA-2cosA}
= 2cosA( 1- cosA)/ {2( 1- cosA) - 2sinA( 1- cosA) }
=2cosA/2 (1- sinA)
= 1/(1- sinA)/cosA
= 1/1/cosA - sinA/cosA
= 1/secA - tanA
= R.H.S
i think answer will be use full
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