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(ii) How much less 2a2 + 1 is than 3a2- 6?
9. If x = 6a + 8b + 9c; y = 2b – 3a – 6c and
Z = C – b + 3a; find :
(i)

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(ii) How much less 2a2 + 1 is than 3a2- 6?
9. If x = 6a + 8b + 9c; y = 2b – 3a – 6c and
Z = C – b + 3a; find :
(i) x + y + z​

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Genesis

4. Find the value of( 23)
Ans:
-27
5.
39
Ans:
-9​

Q.21 In the given figure find the value of x.
30°
R​

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