Question

Evaluate
cos (40°+0) - sin (50⁰ + 0) +
cos² 40° + cos2 50°/
sin² 40° + sin² 50°​

Answer 1

Cos(40+0)-cos(40+0)+cos2 40 +sin2 40/sin2 40+cos2 40=. 0+1/1= 1

Answer 2

Answer:

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