Find the value of (1) Sin 35 Cos 30 - Cos 45 Sin 30 (II) Cos 60 Cos 45 + Sin 60 Sin 45
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Answer:
.H.S
sin45⋅cos45
o
+sin30
=
2
1
.
2
1
+
2
1
=
2
1
+
2
1
=
2
2
=1
Now,
L.H.S
tan3x=1
But tan45
o
=1
∴tan3x=tan45
⇒3x=45
⇒x=
3
45
∴x=15.
Step-by-step explanation:
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