if (z sq. + 1/z sq. =18 ,find the value of (zcube - 1/z.cube )
Answers
Answered by
1
Explanation:
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Answered by
0
Answer:
Answer
x=3+
3
x
2
=(3+
8
)
2
=9+8+6
8
=17+6
8
x
2
+
x
2
1
=(3+
8
)
2
+
(3+
8
)
2
1
⇒17+6
18
+
17+6
8
1
⇒
17+6
8
(17+6
8
)
2
+1
×
(17−6
8
)
(17−6
8
)
⇒
289−288
(17+6
18
)
2
(17−6
8
)+(17−6
8
)
⇒(289−288)(17+6
8
)+17−6
8
⇒17+6
8
+17−6
8
=34
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