Find the complementary angle — task. Maths TNSB Mentoring, Class 9.

(i) Express \(\cos 51^{\circ}\) in terms of sine.

(ii) Express \(\cot 74^{\circ}\) in terms of tangent.

Answer:

(i) \(\cos 51^{\circ}\) \(=\) \(^{\circ}\)

(ii) \(\cot 74^{\circ}\) \(=\) \(^{\circ}\)

[Note: Leave a space before the angle while you enter the answer.]

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1. Find the complementary angle