the value of sin 67 sec23
Answers
Answered by
1
Answer:
sin(90-23) × sec 23
cos23 × sec23
cos23 × 1/cos 23
1 ans
Answered by
8
Answer:
1
Step-by-step explanation:
sin 67° × sec23°
= sin67° × 1/cos23°
= sin67° × 1/cos(90°-67°)
= sin 67° × 1/sin67°
=1
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