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JEE Advanced Model Paper 6 with solutions for online practice

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Passage-II

−

a

= a1

^

i

+ b1

^

j

+ c1

^

k

,

−

b

= a2

^

i

+ b2

^

j

+ c2

^

k

are two vectors then

−

a

.

−

b

= a1a2 + b1b2 + c1c2 , 1

1

n

= cos

2kπ

n

+ isin

2kπ

n

, (k = 0 , 1 , 2 , 3 ..... )

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Question : 33 of 60

Marks: +1, -0

In a triangle ABC , |

–––––

–––––

–––––

–––––

= 24 then √|AB|2−39

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