2) cot 60° - sin 45°
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FInd the exact value of the expression. Please see attached. Thank you.
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- a) 2+3i b) 2-3√2i Write in trigonometric form with 0 ≤ 0 ≤ 2πa) Express (-√3+3i) in the form re, where (radians) lies in the second quadrant. Give your answer to r in surd form and in terms of . b) Hence, compute (-√3+32)³¹ giving your answer in (r)³¹ (x + iy) form where x and y are real numbers.Use De Moivre's Theorem to find (-2-2√3 i)². Put your answer in standard form.
- If z1 = 13 – 10i and z2 = -15 + 9i, determine the following: 2) (z1 +z2) (Rectangular Form) COMPLETE THE MISSING THE BLANKS FOR THE FINAL ANSWER: ia) Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles. sin2(3x) cos2(3x) b) Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles. cos4(4x)Show complete solutions and simplify all answers. Enclose all final answers in a box. a.) (D2 - 10D + 34)y = -cos3x b.) D3 - 3D +2)y = -7 c.) y''' - 9y' = 27