Question

ПОМОГИТЕ ПОЖАЛУЙСТА ТЕСТ ( математике)
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Answer 1

1.

=2×3×4=24.

Ответ (20; 25)

2.

=(cos (30+5))/2(sin (60-5))=

(cos30cos5-sin30sin5)/2(sin60cos5-cos60sin5) =

( |/3/2cos5-1/2sin5)/

2(|/3/2cos5-1/2sin5) =1/2=0,5