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Please Solve R.D.Sharma class 12 Chapter 25 Scalar Triple Product  Exercise Fill In The Blanks Question 1 Maths textbook Solution.

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Answer:  -1

Hint :- Just simplify using dot product.  

Solution: \begin{aligned} &\lceil\mathrm{i} \mathrm{k} \mathrm{j}]+\lceil\mathrm{k} \mathrm{j} \mathrm{i}]+\lceil\mathrm{j} \mathrm{k} \mathrm{i}]\\ \end{aligned}

\begin{aligned} &=(i \times k) \cdot j+(k \times j) \cdot i+\lceil j \times k\rceil . i\\ &=-j . j+(-i) \cdot i+i\cdot i\\ &=-1-1+1\\ &=-1 \end{aligned}

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