Question

Sin 50/Cos 40 + Cosec 40/ Sec 50 - 4 cos 50× cosec 40 (please keep photo) of solution​

Answer 1

Step-by-step explanation:

Sin 50/Cos40 +Cosec 40 / Sec 50-4Cos 50× Cosec 40

= Sin(90-40)/Cos 40 + Cosec (90-50)/sec 50

-4cos(90-40)×cosec 40

Cos40/ Cos40 +Sec50/Sec50-4Sin40×cosec40

1+1-4=-2

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