prove that 1/sin10-√3/cos10=4
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cos10-root3sin10=4sin10cos11 on cross multiplication
1/2cos10-root3/2sin10=2sin10cos10
sin30cos10-cos30sin10=sin20
sin(30-10)=sin20
sin20=sin20
lhs=rhs
1/2cos10-root3/2sin10=2sin10cos10
sin30cos10-cos30sin10=sin20
sin(30-10)=sin20
sin20=sin20
lhs=rhs
sonai1:
thanks but can't we derive the rhs from lhs....
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