Math, asked by sarithareddy793, 11 months ago

Evaluate sin 15°×seec 75°

Answers

Answered by SunHelpingHand

1

sec75= 1/cos75= 1/cos(90-15)=1/sin15

So sin15×sec75= sin15×(1/sin15)=1

Answered by Nalinkumar

0

Answer:1

Step-by-step explanation:

sin15×sec75=sin(90-75)×sec75

= Cos75×sec75

= 1/sec75 × sec75

=sec75 and sec75 cancel

Then answer is 1

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