Question

sin 70/cos 20 + cosec 20/sec70 - cos 70 × cosec 20 = 0

Answer 1

take L.H.S

sin70/cos20 +cosec20/sec70-cos70 ×cosec20

= sin(90-20) /cos20+cosec(90-70)/sec70-cos70 × cosec(90-70)

$\sin(90 - \alpha ) = \cos( \alpha )$

$\csc(90 - \alpha ) = \sec( \alpha )$

then

= cos20/cos20 +sec70/sec70 -cos70× sec70

$\cos( \alpha ) \times \sec( \alpha ) = 1$

= 1 +1 -1

= 1

so ur question is wrong

R.H.S. is 1 not 0

plz correct the question

Hope it help u
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