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Prove that : ("cosec"theta-"sin"theta)...

Prove that :
`("cosec"theta-"sin"theta)("sec"theta-"cos"theta)("tan"theta+"cot"theta)=1`

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ICSE-QUESTION PAPER 2019-SECTION B
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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. In the given figure, angle PQR = anglePST = 90^(@), PQ = 5 cm and PS =...

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

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  7. A hemispherical and a conical hole are scooped out of a solid wooden ...

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

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

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

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

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

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

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  14. Using ruler and a compass only, construct a semi-circle with diameter ...

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  20. The product of two consecutive natural numbers which are multliples of...

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