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TS ICET 23 May 2019 Shift 2 Paper
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© examsnet.com
Question : 118
Total: 200
cos (A + 45° + sin (A - 45°)
√
2
s
i
n
A
√
2
c
o
s
A
0
1
Validate
Solution:
cos
(
A
+
45
∘
)
+
sin
(
A
−
45
∘
)
=
cos
A
cos
45
∘
−
sin
A
sin
45
∘
+
sin
A
cos
45
∘
−
cos
A
sin
45
∘
=
0
(
∵
sin
45
∘
=
cos
45
∘
=
1
√
2
)
© examsnet.com
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