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Vector Algebra question

2024 · 5 Apr · Shift 1 · Q58
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  5. /2024 · 5 Apr · Shift 1 · Q58

Vector Algebra question

2024 · 5 Apr · Shift 1 · Q58

JEE MainMathematicsVector AlgebraNumerical+4 / −1
Let a→=i^−3j^+7k^,b→=2i^−j^+k^\overrightarrow{\mathrm{a}}=\hat{i}-3 \hat{j}+7 \hat{k}, \overrightarrow{\mathrm{b}}=2 \hat{i}-\hat{j}+\hat{k}a=i^−3j^​+7k^,b=2i^−j^​+k^ and c→\overrightarrow{\mathrm{c}}c be a vector such that (a→+2b→)×c→=3(c→×a→)(\overrightarrow{\mathrm{a}}+2 \overrightarrow{\mathrm{b}}) \times \overrightarrow{\mathrm{c}}=3(\overrightarrow{\mathrm{c}} \times \overrightarrow{\mathrm{a}})(a+2b)×c=3(c×a). If a⃗⋅c⃗=130\vec{a} \cdot \vec{c}=130a⋅c=130, then b⃗⋅c⃗\vec{b} \cdot \vec{c}b⋅c is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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