Q. Express z1=17[cos(π)+isin(π)] in rectangular form.Express your answer in exact terms.z1=
Identify Trigonometric Values: To convert a complex number from polar to rectangular form, we use the identities cos(θ) and sin(θ) to represent the real and imaginary parts, respectively. For z1=17[cos(π)+isin(π)], we need to evaluate cos(π) and sin(π).
Evaluate Trigonometric Functions: The value of cos(π) is −1 and the value of sin(π) is 0. Therefore, we can substitute these values into the expression for z1.
Substitute Values: Substituting the values gives us z1=17[(−1)+i(0)], which simplifies to z1=17⋅−1+17⋅0⋅i.
Simplify Expression: Multiplying through, we get z1=−17+0i, which is the rectangular form of the complex number.
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