Given
u=4-7i, v=1+5i, w=6+7i
v-w=(1+5i)-(6+7i)=-5-2i
so u-(v-w)=(4-7i)-(-5-2i)
u-(v-w)=4-7i+5+2i
u-(v-w)=9+(-5)i this is form of a+ib
Problem #6: Let u = (i, 21,6), v = (5,-21, 1+i), w = (2-i, 21, 8 + 6i). Compute (u: v) wu Express your answer in the form a + bi and enter the values a and b (in that order) into the answer box below, separated with a comma. Problem #6: -35,27 Values of a and b, separated with a comma. Just Save Submit Problem #6 for Grading Problem #6 Attempt #3 Your Answer: Attempt #1 13,27 0/2x Attempt...
Multiply. (2 + 7i)(8 + i) (2 + 71)(8 +i)= (Simplify your answer. Type your answer in the form a + bi.)
Let u = 5i - j, v = 41+ j, and w=i+6j. Find the specified scalar. u.V+U.W u•v+u•w= (Simplify your answer.) Enter your answer in the answer box. Save for Later < Previous
show step! Chapter 5, Section 5.3, Question 13 Computeu. V- w. u u-(, 21, 7), v- (3, - 21, 1 ), w- (2 - i, 2i, 2 + 7i)
Directions: In 25-27, let u = 15-6i .V=-5+ 4i, and w=-2-i. [25] Simplify u + 3v: A) -6i B) 6i C) 30-6i D) 30+6i E) none of these [26] Find the sum of the conjugate of v and the conjugate of w. A)-7-31 B) -7 +31 C) 7-3i D) 7+3i E) none of these [27] Subtract w from u. A) -17-71 B) -17+5i c) 13-5i D) 13-71 E) none of these
1 Problem 4. Let V be a vector space and let U and W be two subspaces of V. Let (1) Prove that ifU W andWgU then UUW is not a subspace of V (2) Give an example of V, U and W such that U W andWgU. Explicitly verify the implication of the statement in part1). (3) Proue that UUW is a subspace of V if and only if U-W or W- (4) Give an example that proues the...
ho Determine whether v and w are parallel, orthogonal, or neither. v=3i - 5j 21 w=7i+5 Are vectors v and w parallel, orthogonal, or neither? O Parallel O Neither Orthogonal Click to select your answer
Simplify and write the complex number in standard form. 6 + 1 5 + 7i
Let u = [1, 3, -2], v = [-1, 1, 1], w = [5, 1, 4]. a) Check if the system of vectors {u,v,w} is an orthogonal or othonormal basis of E3. b) Find the coordinates of the vector [1,0,1] in this basis.
Let u = 31 - ), v= 41+j, w = i +5j Find the specified scalar. (4u) .v (4u)•v=0 Enter your answer in the answer box