Question

V(log, 10 + 4 lg 2- 4) · log, 10 – log2 40

Answer 1

Пошаговое объяснение:

var>

lg2

log

2

40

−

log

80

2

log

2

5

=

log

2

10

log

2

2

log

2

40

−

log

2

80

log

2

2

log

2

5

=

log

2

40∗log

2

10−log

2

5∗log

2

80=

log

2

40∗(log

2

2+log

2

5)−log

2

5∗(log

2

2+log

2

40)=

log

2

40∗(1+log

2

5)−log

2

5∗(1+log

2

40)=

log

2

40+log

2

40∗log

2

5−log

2

5−log

2

5∗log

2

40=

log

2

40−log

2

5=log

2

(2

3

∗5)−log

2

5=

log

2

2

3

+log

2

5−log

2

5=log

2

2

3

=3</var>