Jika log 2= 0,301, log 3=0,477,dan log 5 = 0,699 maka nilai dari log 150 adalah

Penyelesaian:

jawaban:

2^log6×8 = 2^log48=log48/log2
log 3×2×2×2×2 / log2
log3+ 4. log2 / log2
0,4771+ 4. 0,3010 / 0,3010
0,4771+ 1,2040 / 0,3010
1,6811 / 0,3010
5,5850

1. 1/2× + 3 > 9
×2
= × + 6 > 18
= × > 18 - 6
= × > 6

× = { 7, }

2.2/3 × - 5< 7
×3
= 2× -15 < 21
= 2× < 15 + 21
= 2× < 36
= × < 18

× = { 17, }

3. 3/4 × -2 > -3
× 4
= 3× -8 > -12
= 3× > -12 + 8
= 3× > -4
= × > - 1,33

4.1/6 -1/2y < 7
×6
= 1 - 3y < 42
= - 3y < 42 -1
= -3y < 41
= y > -13,6

5. 2/3 y +2 > 1/4
×12
= 8y + 24 > 3
= 8y > 3 - 24
= 8y > -21
= y > -2,62

6. 5/12 - y/6 < -2
× 12
= 5 - 2y < -24
= -2y < -24 -5
= -2y < -29
= y > 14, 5