72x72+75x75
=10809
This is sooooo long. I will divide it into 2 parts.
First part
= \(10(\frac{1+i}{1-i})^8\)
=\(10(\frac{1^2+2i-1}{1-(-1)})^8 \)
= \(10(i)^8\)
=\(10\)
Second part
=\(5(\frac{1+i}{1-i})^6 \)
=\(5i^6\)
= \(-5 \)
First part - Second part
= 10 - (-5)
=15
What is (b)?
Can you state it more clearly?
x2+x-2 = (x+2)(x-1)
(3x+1)(x2+x-2)
= 3x3+4x2-5x-2
Therefore a = 3 b = 5
btw the hint is no use xD
20 x 7 x 17 x 8 x 3 x 15 =140 x 17 x 8 x 3 x 5 = 2380 x 8 x 3 x 5 = 19040 x 3 x 5 = 57120 x 5 = 285600
There are only 3 factors of 25. which is 1, 5, and 25 and there are only 2 ways to get 25
1x 25 = 25 Sum: 1+25 = 26
5x 5 = 25 Sum: 5+5 = 10
5 and 5 will produce the lowest sum
\(\frac{540 000+33000}{2}\)
=\(\frac{573000}{2}=286500\)
What do you mean by negative log
logarithm of negative number can never be calculated
instead -log(number) can be calculated.
just input -log(number)?
1.3*77^7
= 1.3*16048523266853
=20863080246908.9
sin2π/3 + tanπ/3
= \((\frac{\sqrt{3}}{2})^2+\sqrt 3\)
=\(\frac{3}{4}+\sqrt{3}\)
= \(\frac{3+4\sqrt3}{4}\)
