Regents Exam Questions A2.a.76: Angle Sum And Difference Identities 4 Worksheet With Answers Page 4
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1
2
3
4
5ID: A
10 ANS:
5
41
23
sin B
5
2
B sin
2
B 1
tan B
cos
2
cos B
4
4
2
Ê
ˆ
Á Á Á
˜ ˜ ˜
41
5
2
B
Á Á Á
˜ ˜ ˜
1
cos
Á Á
˜ ˜
41
Ë
¯
25
41
2
B
cos
41
41
B 16
2
cos
41
4
cos B
41
8 15
2
5
23
3
4
12
12
23
tan(A B)
Ê
ˆ
Ê
ˆ
2
12
10
2
Á Á Á
˜ ˜ ˜
Á Á Á
˜ ˜ ˜
2
5
1
Á Á Á
˜ ˜ ˜
Á Á Á
˜ ˜ ˜
12
12
12
3
4
Ë
¯
Ë
¯
REF: 081037a2
11 ANS:
7
9
REF: 088405b
12 ANS:
36
85
REF: 060141siii
13 ANS:
6
2
4
REF: 089041siii
14 ANS:
sin(45 30) sin 45 cos 30 cos 45 sin 30
6
2
3
2
6
2
2
1
2
2
2
2
4
4
4
REF: 061136a2
3
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