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人気のある Word Problems >

What is the product of 3sqrt(6)cis((pi)/8) and 2sqrt(5)cis((7pi)/6)?

解

簡約

(36 c i s (\frac{π}{8})) \cdot (25 c i s (\frac{7 π}{6}))

解

\frac{7 30 π ^{2} i ^{2} c ^{2} s ^{2}}{8}

解答ステップ

(36 c i s (\frac{π}{8})) (25 c i s (\frac{7 π}{6}))

括弧を削除する:

(a) = a

= 36 c i s \frac{π}{8} \cdot 25 c i s \frac{7 π}{6}

分数を乗じる:

a \cdot \frac{b}{c} \cdot \frac{d}{e} = \frac{a \cdot b \cdot d}{c \cdot e}

= \frac{π 7 π 3 6 c i s \cdot 2 5 c i s}{8 \cdot 6}

π 7 π 36 c i s \cdot 25 c i s = 4265 π^{2} i^{2} c^{2} s^{2}

= \frac{42 6 5 π ^{2} i ^{2} c ^{2} s ^{2}}{8 \cdot 6}

数を乗じる:

8 \cdot 6 = 48

= \frac{42 6 5 π ^{2} i ^{2} c ^{2} s ^{2}}{48}

共通因数を約分する:

6

= \frac{7 6 5 π ^{2} i ^{2} c ^{2} s ^{2}}{8}

因数

6 : 23

因数

8 : 2^{3}

= \frac{7 2 3 5 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{3}}

キャンセル

\frac{7 2 3 5 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{3}} : \frac{7 3 5 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{\frac{5}{2}}}

= \frac{7 3 5 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{\frac{5}{2}}}

2^{\frac{5}{2}} = 2^{2} 2

= \frac{7 3 5 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{2} 2}

簡素化

735 π^{2} i^{2} c^{2} s^{2} : 715 π^{2} i^{2} c^{2} s^{2}

= \frac{7 15 π ^{2} i ^{2} c ^{2} s ^{2}}{2 ^{2} 2}

2^{2} = 4

= \frac{7 15 π ^{2} i ^{2} c ^{2} s ^{2}}{4 2}

有理化する

\frac{7 15 π ^{2} i ^{2} c ^{2} s ^{2}}{4 2} : \frac{7 30 π ^{2} i ^{2} c ^{2} s ^{2}}{8}

= \frac{7 30 π ^{2} i ^{2} c ^{2} s ^{2}}{8}

人気の例

You jogged 11 kilometers at an 平均 speed of 10 kilometers per hour. How long did you jog?The product of 6 and two more than a number Matthew invested 680 in an account paying an interest rate of 5.8% compounded daily. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 11 years?The diameter of a circle is 11 cm. Find its 円周 in terms of pi The diameter of a circle is 3 cm. Find the 円周 to the nearest tenth