Calculate a2: To square the complex number (1−10i), we will use the formula (a+bi)2=a2+2abi−b2, where a=1 and b=−10.
Calculate 2abi: First, we calculate a2, which is 12=1.
Calculate −b2: Next, we calculate 2abi, which is 2×1×(−10i)=−20i.
Combine results: Then, we calculate −b2, which is −(−10)2=−100.
Simplify expression: Now, we combine these results to get the squared form: 12+2×1×(−10i)−(−10)2=1−20i−100.
Simplify expression: Now, we combine these results to get the squared form: 12+2×1×(−10i)−(−10)2=1−20i−100. Simplify the expression to get the final result: 1−20i−100=−99−20i.
More problems from Csc, sec, and cot of special angles