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What is the fifth power of (a + b)? The required format is, for example, the quadratic power of (a + b) = the square of a + the square of B + 2Ab
Five times of (a + b)
=a^5+5a^4b+10a^3b^2+10a^2b^3+5ab^4+b^5
If the power a of 10 is equal to 2, and the power B of 10 is equal to 3, use a, B to represent log5 12 =?
The power a of 10 is equal to 2, and the power B of 10 is equal to 3
So, a = LG2, B = 1g3
log5 12=(lg2+lg2+lg3)/(1-lg2)=(2a+b)/(1-a)
Q: if a + 1 / A is equal to 5, how much is the 2 / 2 power of a + the 4 power of a + 1?
24 A ^ 2 represents the square of A
A + 1 / a = 5 simultaneous square on both sides
（a+1/a）^2=25=a^2+1/a^2+2
a^2+1/a^2=23
So (a ^ 2 + A ^ 4 + 1) / A ^ 2 = 1 + A ^ 2 + 1 / A ^ 2 = 1 + 23 = 24
If the negative power of a + A is equal to 3, then the square of a + the negative power of a is equal to
A+A^-1=3
Square on both sides
A ²+ 2+A^-2=9
A ²+ A^-2=7
What is the square of a plus the negative quadratic power of a equal to 4, and the fourth power of a plus the negative fourth power of a
a^4+a^(-4)
=[a ²+ a^(-2)] ²- two
=4 ²- two
=14
If a plus a to the negative power of a equals 3, what is the square of a plus the negative power of a Send it to my email
seven
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