Question

value of cos 75° step by step​

Answer 1

Answer:

pls follow kar do (◕ᴥ◕)(◕ᴥ◕)

cos(75)

= cos(30 + 45)

= (cos30×cos45) - (sin30×sin45)

Putting value we get

$\cos(75) = \frac{ \sqrt{3} - 1 }{2 \sqrt{2} }$