plzzz solve this question
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1
hey
= sec70.sin20 - cos70.cosec20
= 1/cos70 . sin20 - 1/sec70 . cosec20
= sin20/sin20 - cosec20/cosec20
{sin20 and cosec20 are cancelled}
= 1-1
=0
= sec70.sin20 - cos70.cosec20
= 1/cos70 . sin20 - 1/sec70 . cosec20
= sin20/sin20 - cosec20/cosec20
{sin20 and cosec20 are cancelled}
= 1-1
=0
dgfhjsj:
plzz can you explain briefly
like i want to learn this plzz
check it out...i have explained
thank you bro
my pleasure (*_*)
Answered by
0
Sec70°.sin20°-cos70°.cosec20°
sin20°/sin20°-cos70°/cos70°
1-1
=0
sin20°/sin20°-cos70°/cos70°
1-1
=0
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