Page 217 - Mathematics_Form_Two

Chapter name

Exercise 6�3 2. (a) -0.1662 (e) -1.5059
(b) -2.0969 (f) -1.8303
1. (a) 6 (c) 6 (c) -0.1308 (g) -0.9031

(b) 7 (d)-1 (d) -4.3476 (h) -2.0083
3
2. (a) 6 (d) 3. (a) 3.9404 (g)
2 1.3010
FOR ONLINE READING ONLY
(b) 12 (e) 1 (b) 2.8451 (h) 3.2987
4
(c) − (f) -15 (c) 4.8836 (i) 4.8928
3 (d) 6.6335 (j) 2.5499

3. (a) 3 (d) 3 (e) 1.9232 (k) 1.6401 Mathematics for Secondary Schools
(b) 2 (e) 1 (f) 5.0464 (l) 5.6937
2
(c) 4 (f) 4. (a) 4,132 (e) 1.191
3
4. 2 (b) 78.19 (f) 0.00001406

5. (a) 2log x − 5 3log y − 5 2 (c) 2.837 (g) 17.73

1 (d) 100,000,000 (h) 0.0000001777
(b) 2log u + 2 2 log v − 2 5log z 5. (a) 37.31 (b) 4.340 (c) 27.59
2
1
(c) 2log (x + 2 ) y − 2 log z 6. (a) x = 849.1 (b) x = 50.10
2

x 2
6. (a) (b) 2y Exercise 6�5
4
7. (a) x = 45 (d) x = 10 1. (a) 1.7875 (d) 2.4662
(b) x = 15 (e) x = 5 (b) 4.969 (e) 0.0959

(c) x = 20 (f) x = 1 (c) 2 (f) 1.5850
2 2. H = 10 − 7
+
−
8. (a) 1.95424 (b) 0.309895 3. x = 8, or x = 12
1000
9. y = x 2 4. t = 34.655 years

( −
q mq 1) 5. t = 17.673 years
10. (a) p = 4 (b) p =
100 b L
11. No solution 6. I = I × 0 10 and I = 10 1 10 watts per m× − 4 2

7. λ = 0.0693 per year
Exercise 6�4
8. t = 22.5175 years
1. (a) 0.1995 (e) 0.9546
(b) 0.4742 (f) 0.7782 9. I = 1 10 watts per m× − 3 2
(c) 0.6115 (g) 0.5371 r = 0.1386 per hour
(d) 0.9315 (h) 0.8771 10.

211
Student's Book Form Two

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MATHEMATIC F2 v5.indd 211