Question

-(1/2)-²+(1/3)-²+(1/4)-²​

Answer 1

Answer:

Question

$- ( \frac{1}{2} ) { }^{ - 2} + ( \frac{1}{3} {}^{ - 2} ) + ( \frac{1}{4}) {}^{ - 2}$

Solution

$= > - ( \frac{1}{2} ) {}^{ - 2} + ( \frac{1}{3} ) {}^{ - 2} + ( \frac{1}{4}) {}^{ - 2}$

$= > - (2 \times 2) + (3 \times 3) + (4 \times 4)$

$= > - 4 + 9 + 16$

$= > 21$

Hope it helps!!!

Answer 2

Answer:

Question:

-(1/2)^-2+(1/3)^-2+(1/4)^-2

Answer:21

Step-by-step explanation:

-(1/2)^-2+(1/3)^-2+(1/4)^-2

-(2)²+(3)²+(4)²

-(4)+(9)+(16)

-4+9+16

-4+25

21

Hence, Answer is 21