Question

If the three consectutive vertices of a
parallelogram are i+j+k; 3; +5k and
77 +9; + 11k then fourth vertex is​

Answer 1

Answer: Answer

0

itsbiswaa

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Answer:

Let A(  

a

)=i+j+k

B(  

b

)=i+3j+5k

C(  

c

)=7i+9j+11k

D(  

d

) is to be determined

ABCD is a parallelogram so  

2

1

​  

(  

b

+  

d

)=  

2

1

​  

(  

a

+  

c

)

d

=  

a

+  

c

−  

b

=8i+10j+12k−(i+3j+5k)

=7i+7j+7k=7(i+j+k)

Explanation: