Can You Please Solve This.
Questions.
cos40⁰+sec50⁰-2sin50⁰sec10⁰
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sin50⁰ cosec40⁰
Answers
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Step-by-step explanation:
sin 50° = sin( 90 - 40 ) = cos 50 °
Cosec 40 = Cosec ( 90 - 50 ) = sec 40°
cos 50 = cos ( 90 - 40 ) = sin 40°
sin 40 Cosec 40 = 1
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sin 50 / cos40 + Cosec 40 / sec50 - 4cos50cosec40
= cos 40 / cos 40 + sec 50/ sec 50 - 4sin 40 Cosec 40
= 1 + 1 - 4
= -2
I hope this helps you.
:)
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