Question

(a) sin 45º. cos 45º - sin 60° please answer the question fast i just need explained answer and the answer is 1/4 so try to make it out
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Answer 1

(a) sin 45º. cos 45º - sin 60° please answer the question fast i just need explained answer and the answer is 1/4 so try to make it out

Plz mark me the brainliest

Answer 2

Step-by-step explanation:

sin 45° = 1/√2

cos 45° = 1/√2

sin 60° = √3 / 2

so,

sin 45° . cos 45° - sin 60°

= 1/√2 . 1/√2 - √3 / 2

= 1/2 - √3/2

= (1 - √3)/2

( Ans )