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Please give me solution of this question question 

Asked by sanjaysingh.srct | 02 Sep, 2019, 10:59: PM
Expert Answer
The two lines are along the vectors open parentheses i with hat on top minus j with hat on top plus k with hat on top close parentheses space a n d space open parentheses i with hat on top plus j with hat on top minus k with hat on top close parentheses space r e s p e c t i v e l y
A n g l e space b e t w e e n space t h e s e space t w o space l i n e s space equals space cos to the power of negative 1 end exponent open parentheses fraction numerator 1 cross times 1 plus 1 open parentheses negative 1 close parentheses plus open parentheses negative 1 close parentheses 1 over denominator square root of 3 square root of 3 end fraction close parentheses equals cos to the power of negative 1 end exponent 1 third
N o w comma space v e c t o r space a lo n g space a c u t e space b i s e c t o r equals lambda open parentheses fraction numerator open parentheses i with hat on top minus j with hat on top plus k with hat on top close parentheses over denominator square root of 3 end fraction minus fraction numerator open parentheses i with hat on top minus j with hat on top plus k with hat on top close parentheses over denominator square root of 3 end fraction close parentheses equals fraction numerator 2 lambda over denominator square root of 3 end fraction open parentheses negative j with hat on top plus k with hat on top close parentheses
H e n c e comma space t h e space e q u a t i o n space o f space a c u t e space a n g l e space b i s e c t o r space equals open parentheses i with hat on top plus 2 j with hat on top plus 3 k with hat on top close parentheses plus rho open parentheses j with hat on top minus k with hat on top close parentheses
Answered by Renu Varma | 18 Sep, 2019, 10:12: AM
JEE main - Maths
Asked by swayamagarwal2114 | 21 Jul, 2022, 05:18: PM
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Asked by sanjaysingh.srct | 02 Sep, 2019, 10:59: PM
ANSWERED BY EXPERT
JEE main - Maths
left parenthesis s e c squared space a right parenthesis i with rightwards harpoon with barb upwards on top plus j with rightwards harpoon with barb upwards on top plus k with rightwards harpoon with barb upwards on top comma space i with rightwards harpoon with barb upwards on top plus left parenthesis s e c squared b right parenthesis j with rightwards harpoon with barb upwards on top plus k with rightwards harpoon with barb upwards on top space a n d space i with rightwards harpoon with barb upwards on top plus j with rightwards harpoon with barb upwards on top plus left parenthesis s e c squared c right parenthesis k with rightwards harpoon with barb upwards on top space a r e space c o p l a n a r.
w h a t space i s space t h e space v a l u e space o f space cos e c to the power of 2 space end exponent a plus cos e c squared b plus cos e c squared c ?
Asked by effiseb | 28 Jan, 2019, 10:38: AM
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Asked by rsudipto | 05 Jan, 2019, 09:19: AM
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