Is it right to say that cos (600 + 300 ) = cos 60° cos 30° - sin 60°sin 30°
Answers
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0
Answer:
sin60°cos30°+sin30°cos60°
=
2
3
×
2
3
+
2
1
×
2
1
=
4
3
+
4
1
=
4
4
=1
Step-by-step explanation:
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