Question

Fine the value of ____
sin75°​

Answer 1

Answer:

sin75°

=>sin(30°+45°)

=>sin30°cos45°+cos30°sin45°

=>1/2×1/√2+√3/2×1/√2

=>1/2√2+√3/2√2

=>√3/2√2

[hope it's help ful❤]

Thanksss

Answer 2

$\bf\: value \: of \: \sin(70)$

(sin45+30)

→sin45°cos30°+cos45°sin30°

$\implies \frac{1}{ \sqrt{2} } \frac{ \sqrt{3} }{2} + \frac{1}{ \sqrt{2} } \frac{1}{2}$

$\implies \frac{ \sqrt{3} }{2 \sqrt{2} } + \frac{1}{2 \sqrt{2} }$

$\implies \frac{ \sqrt{3} + 1 }{2 \sqrt{2} }$