Page 57 - Hybrid PBD 2021 Form 2 - Matematik

Matematik Tingkatan 2 Bab 3
6. Cari nilai bagi setiap yang berikut. SP 3.1.3 TP3 E-pop Quiz
Find the value of each of the following.

(a) Diberi k = y – 3h , cari nilai k apabila y = 4 dan

Diberi a = b + c , cari nilai b apabila a = 13 dan h = –7.
2
2
2
c = 5. Given k = y – 3h , find the value of k when y = 4 and h = –7.

Given a = b + c , find the value of b when a = 13 and c = 5.
2
2
2

a = b + c 2 Gantikan nilai a dan c k = y – 3h
2
2


13 = b + 5 dalam persamaan. = 4 – 3(–7)
2
2
2
Substitute the values of a
and c into the equation.
169 = b + 25 = 4 + 21
2


b = 169 – 25
2

= 25

144
b =  Ungkapkan b sebagai perkara = 5
rumus dan selesaikan.
= 12 Express b as the subject of formula
and solve it.
1
1
2
(b) Diberi x = 3(2 – y ) , cari nilai x apabila y = –2 dan (c) Diberi + 1 = m , cari nilai k apabila h = 2 dan
z
k
h
z = –8. m = 3.
3(2 – y ) 1 1 1
2
Given x = , find the value of x when y = –2 and Given + = , find the value of k when h = 2 and m = 3.
z h k m
z = –8.
1 + 1 = 1
2
x = 3(2 – y ) h k m
z 1 + 1 = 1
2
= 3[2 – (–2) ] 2 k 3
–8 1 = 1 – 1
k
3
2
= 3(–2)
–8 1 = – 1
k
6
= 6
8 k = – 6
3
=
4

(d) Diberi 4 + p = t, cari nilai p apabila q = –2 dan (e) Diberi x = y² z, cari nilai z apabila x = 64 dan
5q
y = 2.
t = –1. Given x = y² z , find the value of z when x = 64 and y = 2.

4 + p
Given = t, find the value of p when q = –2 and t = –1.
5q x = y² z

4 + p = t 64 = 2² z

5q

4 z = 64
4 + p = –1
5(–2)  64
z =
4

4 + p = –1(–10) = 16
= 10
p = 10 – 4 z = 16 2
= 6 = 256
30
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