Math, asked by karthick123456789, 8 months ago

evaluate: sin17×sin3×sin1×sec73×sec87×sec89

Answers

Answered by AdorableMe

4

Answer:

1

Step-by-step explanation:

sin17×sin3×sin1×sec73×sec87×sec89

=sin17* sin3*sin1*sec(90-17)*sec(90-3)*sec(90-1)

=sin17*sin3*sin1*cosec17*cosec3*cosec1

=sin1*cosec1*sin3*cosec3*sin17*cosec17

=1*1*1

=1

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