find cos72°-sin18° ??
Answers
Answered by
2
Answer:
0
Step-by-step explanation:
cos72-sin18
=cos(90-18)-sin18
=sin18-sin18
=0
Answered by
1
Answer:
0
Step-by-step explanation:
We can write sin 18 as cos90-18= cos 72
than put the value of sin 18 in the given eq.
cos72-cos72
= 0 Ans..
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