solve it plz it's an important
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heya.....
Let A= 3i+4j and a(cap) be the unit vector along i+j .
First find the unit vector of I+j so it will be I+j/|i+j| = 1/√2 (i+j) .
Now find the Magnitude of component of 3i+4j by dot product of 3i+4j with I+j/√2 so it will be 7/√2
So We got the Magnitude of Component of the vectorNow Component of 3i+2j along I+j= Magnitude of 3i+4j × unit vector of I+j=7/√2(i+j)
tysm..@gozmit
Let A= 3i+4j and a(cap) be the unit vector along i+j .
First find the unit vector of I+j so it will be I+j/|i+j| = 1/√2 (i+j) .
Now find the Magnitude of component of 3i+4j by dot product of 3i+4j with I+j/√2 so it will be 7/√2
So We got the Magnitude of Component of the vectorNow Component of 3i+2j along I+j= Magnitude of 3i+4j × unit vector of I+j=7/√2(i+j)
tysm..@gozmit
pushpraj4:
ok but how √2 come
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