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Simplify : "sin"A|("sin"A,-"cos"A),("c...

Simplify :
`"sin"A|("sin"A,-"cos"A),("cos"A,"sin"A)|+"cos"A|("cos"A,"sin"A),(-"sin"A,"cos"A)|`

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The correct Answer is:
`[because"sin"^(2)A+"cos^(2)A=1]`
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ICSE-MATHEMATICS-2019-SECTION-B
  1. Simplify : "sin"A|("sin"A,-"cos"A),("cos"A,"sin"A)|+"cos"A|("cos"A,"...

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  2. There are 25 disc numbered 1 to 25. They are put in a closed box and s...

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  3. Rekha opened a recurring deposite account for 20 months. The rate of i...

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  4. Use a graph sheet for this question. Take 1 cm = 1 unit along both x a...

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  5. Use graph paper for this question. (Take 2 cm = 1 unit along both x-...

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  6. Use a graph sheet for this question. Take 1 cm = 1 unit along both x a...

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  7. Use a graph sheet for this question. Take 1 cm = 1 unit along both x a...

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  8. In the given figure, anglePQR=anglePST=90^(@), PQ = 5cm and PS = 2 cm....

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  9. In the given figure, anglePQR=anglePST=90^(@), PQ = 5cm and PS = 2 cm....

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  10. The first and last term of a geometrical Pregression (G.P.) are 3 and ...

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  11. A hemispherical and a conical hole is scooped out of a solid wooden cy...

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  12. In the given figure AC is a tangent to the circle with centre O. If ...

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  13. The model of a building is constructed with the scale factor 1:30. (...

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  14. The model of a building is constructed with the scale factor 1 : 30. ...

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  15. Given [(4,2),(-1,1)]M = 6 I, where M is a matrix and I is the unit mat...

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  16. Given [(4,2),(-1,1)]M = 6 I, where M is a matrix and I is the unit mat...

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  17. The sum of the first three terms of an Arithmeic Progression (A.P.) is...

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  18. The vertices of a DeltaABC are A (3, 8), B (-1, 2) and C (6, -6). Find...

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  19. The vertices of a DeltaABC are A(3, 8), B(-1, 2) and C(6, 6). Find : ...

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  20. Show that the SHM is projection of uniform circular motion on the diam...

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  21. The data on the number of patient attending a hospital in a month are ...

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