how to subtract two polar numbers?
155046
To add complex numbers in rectangular form, add the real components and add the imaginary components. Subtraction is similar. To multiply complex numbers in polar form, multiply the magnitudes and add the angles. To divide, divide the magnitudes and subtract one angle from the other.
1192878
['Pick any two pairs of equations from the system.', 'Eliminate the same variable from each pair using the Addition/Subtraction method.', 'Solve the system of the two new equations using the Addition/Subtraction method.']
1029909
['Write the numbers so each place value lines up vertically.', 'Subtract the digits in each place value. Work from right to left starting with the ones place. ... ', 'Continue subtracting each place value from right to left, borrowing if needed.', 'Check by adding.']
185620
['Cross-multiply the two fractions and subtract the second number from the first to get the numerator of the answer. ... ', 'Multiply the two denominators together to get the denominator of the answer. ... ', 'Putting the numerator over the denominator gives you your answer.']
1260914
Subtraction of negative fractions follows the same method. Thus, if the negative fractions you are adding do not have the same denominator, you can make it so. -1/2, for example, can be written as -2/4, -3/6, -4/8, et cetera. In each case, the number at the top is always half the number at the bottom.
270364
['Adding a negative number is the same as subtracting the corresponding positive number.', 'Subtracting a negative number is the same as adding the corresponding positive number.', 'Use parentheses to enter negative numbers on the calculator.']
943386
Subtract, don't add, the fractions. The correct answer is . Subtracting mixed numbers works much the same way as adding mixed numbers. To subtract mixed numbers, subtract the whole number parts of the mixed numbers and then subtract the fraction parts in the mixed numbers.
1031401
['subtract them in any order.', 'take the absolute value of the result.']
1147774
Subtract the interior angle from 180. For example, if the interior angle was 165, subtracting it from 180 would yield 15. Divide 360 by the difference of the angle and 180 degrees. For the example, 360 divided by 15 equals 24, which is the number of sides of the polygon.
927549
To subtract binary numbers, simply align the 2 numbers and subtract as you would a regular problem. To subtract with the complement method, align the numbers and, if necessary, add zeros to the front of the second number to give it has an equal amount of digits.
893523
['Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ... ', 'Step 2: Subtract the second equation from the first.', 'Step 3: Solve this new equation for y.', 'Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.']
1160084
Subtraction of Algebraic Fractions. To subtract algebraic fractions, first express them in terms of their Lowest Common Denominator (LCD) and then subtract their numerators to obtain the numerator that is divided by the LCD to arrive at the answer.
295679
When subtracting a larger number from a smaller number, remember the words switch and negate. That is, switch the order of the two numbers and do the subtraction as you normally would, but at the end negate the result by attaching a minus sign.
1457339
Rule 2: Subtracting a positive number from a negative number – start at the negative number and count backwards. For example: Say, we have the problem -2 – 3.
1036666
['Step One: subtract the second hours, minutes, and seconds from the first separately.', 'Step Two: if the seconds are a negative number, then add 60 seconds and subtract 1 minute.', 'Step Three: if the minutes are a negative number, then add 60 minutes and subtract 1 hour.']
1088604
['Subtract 4a + 5b - 3c from 6a - 3b + c. Solution: 6a - 3b + c. + 4a + 5b - 3c. ... ', 'Subtract 3x² - 6x - 4 from 5 + x - 2x². Solution: Arranging the terms of the given expressions in descending powers of x and subtracting column-wise; - 2x² + x + 5. ... ', 'Subtract 3x + y – 3z from 9x – 5y + z. Solution: 9x – 5y + z. + 3x + y – 3z.']
1221423
To subtract a larger number from a smaller one, switch the order of the numbers, do the subtraction, then add a negative sign to the answer. For example, to solve the binary problem 11 - 100, solve for 100 - 11 instead, then add a negative sign to the answer.