Application of DerivativeMedium
Question
At what points the tangent line to the curve y = cos (x + y), (−2π ≤ x ≤ 2π) is parallel to x + 2y = 0-
Options
A.(π / 2,0)
B.(− π / 2, 0)
C.(3π / 2, 0)
D.(3π / 2, π / 2)
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