Math, asked by madhavi717, 1 year ago

evaluate sin 17 sin 3 sin 1 sec 73 sec 87 sec 89

Answers

Answered by varun2214

2

Step-by-step explanation:

=sin(90-73) × sin(90-87) × sin(90-89) × sec73 × sec87 × sec89

=cos73 × cos87 × cos89 × 1/cos73 × 1/cos87 × 1/cos89

=1

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