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Mathematics
Problem
Evaluate
sin
75
∘
cos
15
∘
+
cos
75
∘
sin
15
∘
\sin 75^{\circ}\cos 15^{\circ}+\cos 75^{\circ}\sin 15^{\circ}
sin
7
5
∘
cos
1
5
∘
+
cos
7
5
∘
sin
1
5
∘
. a)
6
+
2
4
\dfrac{\sqrt{6}+\sqrt{2}}{4}
4
6
+
2
b)
1
1
1
c)
1
2
\dfrac{1}{2}
2
1
d)
3
2
\dfrac{\sqrt{3}}{2}
2
3
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