Question

plzz solve it...plzz❣️​​

Answer 1

Answer:

Step-by-step explanation:

Sin70/cos(90-20) + cosec20/sec(90-70) - 2*1/sec70 * cosec20

:. Sin70/sin70 + cosec20/cosec20 -2*1/sec(90-70) * cosec20

= 1+1-2*1/cosec20 * cosec20

=2-2

=0

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Answer 2

Answer:

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