# Find the value of(i) (ii) (iii) (iv) (v) (vi) (vii) (viii) (ix) sin 54° – cos 36° (x) (xi) cosec 31° – sec 59° (xii)(xiii)

(i) [ cos θ = sin (90° - θ)]

(ii) [ cos θ = sin (90° - θ)]

(iii) [ Sin θ = cos (90° - θ)]

(iv) [ Sin θ = cos (90° - θ)]

(v) [ Sin θ = cos (90° - θ)]

(vi) [ Sin θ = cos (90° - θ)]

(vii) [ cos θ = sin (90° - θ)]

(viii) [ cos θ = sin (90° - θ)]

(ix) sin 54° - sin(90° - 36°) [ cos θ = sin (90° - θ)]

sin 54° - sin 54°

0

(x) [ tan θ = cot (90° - θ)]

(xi) cosec 31° - cosec(90° - 59°) [ sec θ = cosec (90° - θ)]

cosec 31° - cosec 31°

0

(xii) [ Sin θ = cos (90° - θ)]

(xiii) [ tan θ = cot (90° - θ)]

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