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Perform the indicated operation and give...

Perform the indicated operation and give your answer in the form `x+yi`, where x and y are real numbers and `i= sqrt(-1)`
`(5-3i)/(6+i)`

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The correct Answer is:
To solve the expression \((5 - 3i)/(6 + i)\) and express it in the form \(x + yi\), we will follow these steps: ### Step 1: Multiply the numerator and denominator by the conjugate of the denominator The conjugate of \(6 + i\) is \(6 - i\). Thus, we multiply both the numerator and denominator by \(6 - i\): \[ \frac{(5 - 3i)(6 - i)}{(6 + i)(6 - i)} \] ### Step 2: Simplify the denominator Now, we simplify the denominator: \[ (6 + i)(6 - i) = 6^2 - i^2 = 36 - (-1) = 36 + 1 = 37 \] ### Step 3: Expand the numerator Next, we expand the numerator: \[ (5 - 3i)(6 - i) = 5 \cdot 6 + 5 \cdot (-i) - 3i \cdot 6 - 3i \cdot (-i) \] \[ = 30 - 5i - 18i + 3i^2 \] Since \(i^2 = -1\), we substitute: \[ = 30 - 5i - 18i + 3(-1) = 30 - 5i - 18i - 3 = 27 - 23i \] ### Step 4: Combine the results Now we can combine the results from the numerator and denominator: \[ \frac{27 - 23i}{37} \] ### Step 5: Split into real and imaginary parts We can express this as: \[ \frac{27}{37} - \frac{23}{37}i \] Thus, in the form \(x + yi\): \[ x = \frac{27}{37}, \quad y = -\frac{23}{37} \] ### Final Answer The final answer is: \[ \frac{27}{37} - \frac{23}{37}i \] ---
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ICSE-COMPLEX NUMBERS-Exercise (B)
  1. Perform the indicated operation and give your answer in the form x+yi,...

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  2. Perform the indicated operation and give your answer in the form x+yi,...

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  3. Perform the indicated operation and give your answer in the form x+yi,...

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  4. Perform the indicated operation and give your answer in the form x+yi,...

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  5. If x+ yi= (u+ vi)/(u-yi), prove that x^(2) + y^(2)=1

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  6. Prove that : [4 + 3 sqrt(-20)]^((1)/(2)) + [4 -3 sqrt(-20)]^((1)/(2))...

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  7. Express the following in the form a+ bi sqrt((5(2+i))/(2-i))

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  8. Express the following in the form a+ bi ((3-i)^(2))/(2+i)

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  9. Express the following in the form a+ bi (1+i)^(-3)

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  10. Express the following in the form a+ bi ((4i^(3)-i)^(2))/(2i+1)

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  11. Express the following in the form a+ bi (i-1)/(i+1)

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  12. Express the following in the form a+ bi (2+i)/((3-i)(1+2i))

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  13. Express the following in the form a+ bi (5)/(2i-7i^(2))

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  14. Prove that ((-1 + isqrt3)/(2))^(3) is a positive integer

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  15. If one of the values of x of the equation 2x^(2)-6x + k= 0 " be " (1)/...

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  16. Define conjugate complex numbers and show that their sum and product a...

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  17. If bar(z)= -z ne 0, show that z is necessarily a purely imaginary numb...

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  18. z and z' are complex numbers such that their product zz' = 3-4i. Given...

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  19. If a+bi= ((x+i)^(2))/(2x^(2)+1), prove that a^(2) + b^(2)= ((x^(2) + 1...

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  20. Let z(1)=2 -I, z(2)= -2 +i, find (i) Re ((z(1)z(2))/(bar(z)(1))), (ii)...

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