A B- A -2 units and - B -5 units as shown above- Find A - BA- -8 -B- 3 -C- 8 -D- -3 -

The correct option is D As A B=A+( B) =A=2î,B=5î, B= 5î ∴A+( B)=2î+( 5î) = 3î Graphically, ∴A+( B)= ∴A B has a magnitude of 3 units in the negative x direct ...

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Byju's Answer

Standard XI

Mathematics

Graphical Interpretation of Continuity

A B| A |=2 un...

Question

$- \to \to A$ $- \to \to B$

$| \to A | = 2$ units and $| \to B | = 5$ units as shown above.

Find $\to A - \to B$

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Solution

The correct option is D

As $\to A - \to B = \to A + (- \to B)$

= $\to A = 2^i, \to B = 5^i, - \to B = - 5^i$

$∴ \to A + (- \to B) = 2^i + (- 5^i)$

= $- 3^i$

Graphically,

$\to A - \to \to B - \to - \to B \leftarrow - -$

$∴ \to A + (- \to B) =$

$∴ \to A - \to B$ has a magnitude of 3 units in the negative x direction.

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−→→A −→→B |→A|=2units and |→B|=5units as shown above. Find →A−→B

The correct option is D As →A−→B=→A+(−→B) =→A=2^i,→B=5^i,−→B=−5^i ∴→A+(−→B)=2^i+(−5^i) =−3^i Graphically, →A−→ →B−→ −→B←−− ∴→A+(−→B)= ∴→A−→B has a magnitude of 3 units in the negative x direction.

$- \to \to A$ $- \to \to B$

$| \to A | = 2$ units and $| \to B | = 5$ units as shown above.

Find $\to A - \to B$