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Maths Puzzle
(sec8x-1)/(sec4x-1) = tan8x/______ fill the blank space
Read Solution (Total 2)
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- sec8x-1/sec4x-1
=(1-cos8x)cos4x /(1-cos4x)cos8x [by taking L.C.M]
=(2sin24x)cos4x/(2sin22x)cos8x [since 1-cos2x=2sin2x]
=sin4x(2sin4xcos4x)/(2sin22x)cos8x
=(2sin2xcos2x)sin8x/(2sin2xsin2x)cos8x
=cos2xsin8x/sin2xcos8x
=cot2xtan8x
=tan8x/tan2x
- 13 years agoHelpfull: Yes(2) No(0)
- tan8x/(2tan2x)
- 13 years agoHelpfull: Yes(1) No(0)
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