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SRISIRI PUBLICATION-IPE:MARCH-2018[TS]-SECTION-B (SAQs)
- If A is a non-singular matrix then prove that A^(-1) = (adjA)/(|A|).
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- Prove that the following four points are coplanar. i) 4bar(i)+5bar(j...
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- For any two vectors bar(a)andbar(b) , show that (1+|bara|^(2))(1...
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- Show that 1/(sin 10^(@)) - (sqrt(3))/(cos 10^(@)) = 4.
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- Solve sinx+sqrt(3)cosx=sqrt(2)
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- Prove that tan^(-1)((1)/(2))+tan^(-1)((1)/(5))+tan^(-1)((1)/(8))=(pi)/...
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- Prove that cotA+cotB+cotC=(a^2+b^2+c^2)/(4Delta)
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