Question

(iii) sin 30º.cos 45º + sin 45º.cos 30°​

Answer 1

Explanation:

1/2×1/√2+1/√2×√3/2

1/2√2+√3/2√2

1+√3/2√2

Answer 2

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sin 30º.cos 45º + sin 45º.cos 30°

$→ \frac{1}{2} \times \frac{1}{ \sqrt{2} } + \frac{1}{ \sqrt{2} } \times \frac{ \sqrt{3} }{2}$

$→\frac{1}{ \sqrt[2]{2} } + \frac{ \sqrt{3} }{ \sqrt[2]{2} }$

$→\frac{1 + \sqrt{3} }{ \sqrt[2]{2} }$