For the question:
Make 'R' the subject of the formula:
1/R = 1/Ri + 1/Rii
I can find the answer through the 'long version' of multiplying in the common denominator to both sides as eventually isolating R. But I know that there is a shorter version to this answer based on some fundamental algebra rule.
I don't understand what that rule is or how it applies to shorten the length of solving the answer for this question.
Please help.
Make 'R' the subject of the formula:
1/R = 1/Ri + 1/Rii
I can find the answer through the 'long version' of multiplying in the common denominator to both sides as eventually isolating R. But I know that there is a shorter version to this answer based on some fundamental algebra rule.
I don't understand what that rule is or how it applies to shorten the length of solving the answer for this question.
Please help.
Last edited: