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Byju's Answer
Standard IX
Mathematics
Laws of Exponents for Real Numbers
Write in the ...
Question
Write
in
the
expanded
form
.
19
×
x
2
×
y
2
×
z
2
Open in App
Solution
19
×
x
2
×
y
2
×
z
2
=
19
×
x
×
x
×
y
×
y
×
z
×
z
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Similar questions
Q.
If x = r sin θ cos ϕ, y = r sin θ sin ϕ and z = r cos θ, then
(a)
x
2
+
y
2
+
z
2
=
r
2
(b)
x
2
+
y
2
-
z
2
=
r
2
(c)
x
2
-
y
2
+
z
2
=
r
2
(d)
z
2
+
y
2
-
x
2
=
r
2