Find the value of: (12) ^−2 +(13)^ −2 +(14) ^−2
Share
Find the value of: (12) ^−2 +(13)^ −2 +(14) ^−2
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Answer
Given that (
2
1
)
−1
+(
3
1
)
−2
+(
4
1
)
−2
The above equation is in the form of a
−m
=(
a
m
1
)
By applying this law we get (
2
1
)
−1
+(
3
1
)
−2
+(
4
1
)
−2
=2+3
2
+4
2
On simplifying 2+3
2
+4
2
=2+9+16=27
Step-by-step explanation:
hope it may be helpful to you but I want sxygirls