The non-zero vectors are … and … are related by … and … Then the angle between … and … is :

Vector Algebra

JEE Main 2008 · Annual, Paper 1 · Q5684

MathematicsMedium202×since 2002Q5684

The non-zero vectors are

{\overrightarrow a ,\overrightarrow b }

and

{\overrightarrow c }

are related by

{\overrightarrow a = 8\overrightarrow b }

and

{\overrightarrow c = - 7\overrightarrow b \,\,.}

Then the angle between

{\overrightarrow a }

and

{\overrightarrow c }

is :

JEE Main 2008 · Annual, Paper 1 · Q5684

MathematicsMedium202×since 2002Q5684

The non-zero vectors are

{\overrightarrow a ,\overrightarrow b }

and

{\overrightarrow c }

are related by

{\overrightarrow a = 8\overrightarrow b }

and

{\overrightarrow c = - 7\overrightarrow b \,\,.}

Then the angle between

{\overrightarrow a }

and

{\overrightarrow c }

is :