the area of parallelogram whose sides are ICAP is equals to ICAP + 2 J cap + 2 k cap and b vector is equals to two ICAP + 4 j cap + 5 k cap M is
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Answer:
Correct option is
D
4
10
∴ Area of parallelogram =∣a×b∣
=
∣
∣
∣
∣
∣
∣
∣
∣
i
^
−1
−1
j
^
−2
2
k
^
−3
−3
∣
∣
∣
∣
∣
∣
∣
∣
=
∣
∣
∣
∣
i
^
(6+6)−
j
^
(3−3)+
k
^
(−2−2)
∣
∣
∣
∣
=
∣
∣
∣
∣
12
i
^
−4
k
^
∣
∣
∣
∣
=
12
2
+4
2
=4
10
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