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Find the value of a from the following 1. sin3a=cos3a
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Find the value of a from the following 1. sin3a=cos3a
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Mar 17, 2023
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Find the value of a from the following 1. sin3a=cos3a
Mathematics
high-school
Legesh
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3
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Sin3A=Cos3A
Cos(90-3A)=Cos3A
90-3A=3A
90=6A
90/6=A
A=15
The answer is
A
=
15
Makwana Ketan
answered
Mar 18, 2023
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Makwana Ketan
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10
votes
✏
Answer
:
Sin3A
=
Cos3A
Cos
(
90-3A
)
=
Cos3A
90-3A
=
3A
90
=
3A
+
3A
90
=
6A
90
/
6
=
A
A=15
^•^
Ted Shaneyfelt
answered
Mar 23, 2023
by
Ted Shaneyfelt
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