duge, en wat is the value OL A
4. If P(E)= 0.25 what is the probability of “not E”?
5. Find the class mark and class size of the class interval 20 - 35
6. Find the curved surface area of new solid, if two solid hemispheres of same based
"T" are joined together along the bases.
7. Who is the father of CO-ORDINATE GEOMETRY.
8. If two tangents are inclined at 60° are drawn to a circle of radius 3cm then find len
each tangent.
9. What is the HCF of smallest primer number and the smallest composite number?
10. If tangents PA and PB from a point P to a circle with Centre O are inclined to ea
at angle of 80º, then find 2 POA.
11. If p-1, p+3, 3p - 1 are in AP, then find p.
12. If two dice are thrown at the same time, then what will be the probability of gett
doublet?
13. Find the nature of the roots of the quadratic equation. 2x2-4x+3
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Answer:
9) Answer:
Prime number – A prime number is a number which has exactly two factors i.e. it can be divided by only the number ‘1’ and itself.
The smallest prime number is = 2
composite number – A composite number has more than two factors, which means apart from getting divided by number 1 and itself, it can also be divided by at least one integer or number. We don’t consider the number ‘1’ as a composite number.
The smallest composite number is = 4
2 is the factor of 4
∴ H.C.F of the smallest prime number and the smallest composite number is 2.
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