Q7. The value of (1.3)⁴ is?
Answers
Answered by
1
Explanation:
Correct option is
A
56
(
3
+1)
4
+(
3
−1)
4
Using binomial expansion
=[
4
C
0
(
3
)
4
(1)
0
+
4
C
1
(
3
)
3
(1)
1
+
4
C
2
(
3
)
2
(1)
2
+
4
C
3
(
3
)
1
(1)
3
+
4
C
4
(
3
)
0
(1)
4
]+[
4
C
0
(
3
)
4
(−1)
0
+
4
C
1
(
3
)
3
(−1)
1
+
4
C
2
(
3
)
2
(−1)
2
+
4
C
3
(
3
)
1
(−1)
3
+
4
C
4
(
3
)
0
(−1)
4
]
=(
3
)
4
+4(
3
)
3
+6(
3
)
2
+4(
3
)+1+(
3
)
4
−4(
3
)
3
+6(
3
)
2
−4(
3
)+1
=2(
3
)
4
+12(
3
)
2
+2
=56
Answered by
1
(1/3)⁴
1 to the power 4 is 1
3 to the power 4 is 81
so the answer is
1/81
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