Question

[
begin{array}{c}
A=3 hat{i}+4 hat{jmath} quad, B=7 hat{i}+24 hat{jmath}
text { magmiterde of }(B / 2 sqrt{7^{2}+24^{2}}
22 S
end{array}
]
( Delta ) whit vector along ( A=frac{3 hat{i}+4 hat{jmath}}{sqrt{3^{2}+4^{2}}} )
( =frac{3}{5} hat{1}+frac{4}{5} hat{jmath} )
( int_{0}^{sqrt{text { Notes }}} )
( therefore ) requured ( operatorname{vect} theta=2 sin left(frac{3}{5} hat{1}+frac{4}{5} hat{jmath}right) )
( =sqrt{15 hat{l}+20 hat{jmath}} )

# 3. If x=3 4) and 1=71+ 247, the vector having the same magnitude as B and parallel to A is (a) 51+ 207 (b) 151 +10) (c) 201 - 151 (d) isi + 207

Solution