Question

Put value of Equi
4
5
.. sin
+ sin
8.
17
= sin
84
85
✓
5)
...Hence proved
.
Ex. 7.3.49 W-2012, 4 Marks
-1
Show that : sin
1
5
+ COS
(
13)
= COS
65
56
= sin
65
Soin.: Consider,
1
3
sin
= 0 and cos
12
13
o
...(1​

Answer 1

Answer:

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