Question

sin 50° cosec 40°
+
cos 40°
sec 50°
4 cos 50° cosec 40° + 2 = 0.​

Answer 1

Putt value on its easy

Answer 2

Answer:

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Step-by-step explanation:

so, sin50° = sin(90° - 40°) = cos40°.....(i)

also, cosec40° = cosec(90° - 50°) = sec50°....(ii)

now put equations (i) and (ii) in given expression,

=1 + 1 - 4 = -2