Using basic geometry, solve sin 105°

Jane Senya asked Aug 19, 2023

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40 votes

Jane Senya asked Aug 19, 2023

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12 votes

Answer:

See below

Explanation:

sin ( 60 + 45) = sin60 cos 45 + cos45 sin60

= sqrt3 / 2 * sqrt2/2 + sqrt2/2 * 1/ 2

sqrt6/4 + sqrt 2/ 4

(sqrt6 + sqrt 2) / 4

Shawnzhu answered Aug 26, 2023

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