(secA + tanA) (1 - sin A)
Answers
Answered by
3
Step-by-step explanation:
(secA+tanA)(1-sinA)
=secA+tanA-secA×sinA-tanA×sinA
=(1/cosA)+tanA-tanA-(sin²A/cosA)
=(1/cosA)-(sin²A/cosA)
=(1-sin²A)/cosA
=cos²A/cosA
=cosA
hope this will help you
Answered by
3
Answer:
secA +tanA-sinA/cosA-sinAtanA
secA +tanA-tanA-sinAtanA
secA-sinAtanA
1/cosA-sin²A/cosA
1-sin²A/cosA
cos²A/cosA
cosA
answer is cosA
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