A B On the picture below PA= PD, and AB= CD. Prove that PB = PC. P U D

Q: PQRS.TUVW cube has a 10cm rib length, the angle between PV and the PQRS field is θ, the COS value θ…

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Q: ? 120° R V 50° T

A: Angle UTV=50° Angle UVR=120°

Q: Type the correct answer in each box. 21 = 3 cis 7 and 5 cis () %3D If z1 x z2 = a + bi then a = and…

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Q: O Solve the following equation: z³ = 32 + 32/3i, z e C. Give the answer in polar form (radian).

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Q: A Jes X 40% D B CD=8 Sind Stime AD

A: Step 1:

Q: . Let v = (-5, 1, 3) and w = (3,4, 2). (a) Find the dot product, v•w , and the angle 0 between v and…

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Q: dz Find au when u = In 2, v= 1, if z = 10 cot 1x, and x= e" + In v. and dz (Simplify your answer.)…

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Q: Find the value(s) of a making i = 2ai – 3j parallel to u = a? i+3j. %3D a = (If there is more than…

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Q: Suppose V= UW. Show that dim V dim U + dim W.

A: see 2nd step

Q: Evaluate e for z= 2ri. O 1+i Oi

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Q: Prove De Morgan's Law: (AUB) = AN BE

A: To prove the De Morgan's Law, we use the definition of union, intersection and complement of  sets.

Q: Find a · b. a = 9i + j, b= i - 8j + k

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Q: Σ 9n n = 1 Identify an-

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Q: Find cot 0. [?]V] A-6, -3/5)

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