Solution: If cos 65° + cos 55° = cos θ, find the θ in radians.

If cos 65° + cos 55° = cos θ, find the θ in radians.

If cos 65° + cos 55° = cos θ, find the θ in radians.

Problem Statement: CE Board November 1993

If cos 65° + cos 55° = cos θ, find the θ in radians.

Problem Answer:

The value of θ is 0.087 radian

Solution:

Online Questions and Answers in Plane Trigonometry Problems


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