Two sides of triangle expressed as A-5-4-3k- and B-3-2-k- Calculate area of triangle-

Area of the triangle is #160; #160; #160; Area = 12|A⃗×B⃗| So, #160; #160; A⃗×B⃗ = (5î 4ĵ+3k̂)× (3î 2ĵ k̂) = 10î +14ĵ+2k̂ |A⃗×B⃗| = √( ...

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Area of an Equilateral Triangle

Two sides of ...

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Two sides of triangle expressed as $\to A = 5^i - 4^j + 3^k$ and $\to B = 3^i - 2^j -^k$ . Calculate area of triangle.

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A parallelogram has diagonals expressed as $\to A = 5^i - 4^j + 3^k$ and $\to B = 3^i + 2^j -^k$ . Area of parallelogram is:

A

2^i - 7^j +^k, 4^j - 3^k

B

3^i +^j, 5^i + 2^j +^k,^i - 2^j + 3^k

C

(1, 2, 3)

(2, 5, - 1)

(- 1, 1, 2)

D

\to a + 2 \to b

2 \to a + \to b

| \to a | = 3, | \to b | = 2, (\to a, \to b) = \frac{π}{3}

\to a = 3^i + 4^j + 3^k

\to b = 3^i - 2^j +^k .

\to a = 3^i - 2^j +^k, \to b = 2^i - 4^j - 3^k

\to c = - 1^i + 2^j + 2^k

\to a + \to b + \to c =

\to a = 3^i + 4^j

\to b = - 5^i + 7^j

20 \frac{1}{2}

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