Упростите выражения: a)([email protected][email protected])/[email protected]...

Question

Упростите выражения:
a)([email protected][email protected])/[email protected]
b)([email protected][email protected])/[email protected]
@-альфа.

Answer 1

a)([email protected][email protected])/[email protected]=(2*[email protected]*[email protected])/(4*[email protected]*[email protected])=

[email protected]/(2*[email protected])

b)([email protected][email protected])/[email protected]=(2*[email protected]*[email protected])/(2*[email protected]*[email protected])=

[email protected]/[email protected]

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Answer 2

1. Cos2/(2sin3)
2. Cos/cos2............