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Standard X
Mathematics
Trigonometric Ratios
20. Let A=[co...
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20. Let A=[cosx sinx] -Sinx cosx then I2AI is equal to
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Q.
If
sin
x
+
cos
x
=
√
2
cos
x
, then cosx - sin x is equal to
Q.
If
sin
x
+
cos
x
=
a
,
then
|
sin
x
−
cos
x
|
equals
Q.
Let
f
(
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=
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x
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a
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cos
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cos
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If
a
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sin
x
1
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x
+
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x
, then prove that
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x
+
sin
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1
+
sin
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is also equal to
a
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∫
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0
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s
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o
s
x
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d
x
is equal to
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