4 to x = 1 / 2 for the unknown

4 to x = 1 / 2 for the unknown

4 to x = 1 / 2
Here 4 = 1 / 2x
Multiply both sides by two at the same time
We get 8 = x, which is x = 8
The unknown number is 8
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1 / 4 (x-1 / 2) = 2 to find the unknown x

1/4(x-1/2)=2
x-1/2=8
x=8.5

2 root number 3x3 root number 1.5x6 root number 12

=2√3X1.5^1/3X12^1/6
=2X3^1/2X3^1/3X2^-1/3X3^1/6X4^1/6
=2X3^(1/2+1/3+1/6)X2^(-1/3+2X1/6)
=2X3X1
=6

Known arithmetic sequence 3.7.11.15 Which item is 51

3 7 11 15. Pairwise difference 4 is an arithmetic sequence. The general term formula an = a1 + (n-1) Q, where a1 = 3, q = 4, an = 51, is substituted to calculate n = 13, the 13th term