Answer:
i. 29
ii. 6561/128
iii. 1680.7z²
Step-by-step explanation:
i. (1/4)-² + (1/2)-² + (1/3)-²
= (4)² + (2)²+ (3)²
= 16 + 4+ 9
= 29. (ans)
ii. ((-2/3)-²)³ × (1/3)-⁴ × 3-¹ × 1/6
= ( 3²/-2²)³ × 3⁴ × 1/3 × 1/6
= 9³/4³ × 81 × 1/3 × 1/6
= 729/64 × 81 × 1/3 × 1/6
= 6561/128 .ans.
iii. 49 × z-³/ 7-³×10 × z-⁵
= 49 × z² × 7³/ 10
= 16807z²/10
= 1680.7z²(ans).
HOPE IT WAS HELPFUL..
PLEASE mark this answer brainliest..
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Answers & Comments
Answer:
i. 29
ii. 6561/128
iii. 1680.7z²
Step-by-step explanation:
i. (1/4)-² + (1/2)-² + (1/3)-²
= (4)² + (2)²+ (3)²
= 16 + 4+ 9
= 29. (ans)
ii. ((-2/3)-²)³ × (1/3)-⁴ × 3-¹ × 1/6
= ( 3²/-2²)³ × 3⁴ × 1/3 × 1/6
= 9³/4³ × 81 × 1/3 × 1/6
= 729/64 × 81 × 1/3 × 1/6
= 6561/128 .ans.
iii. 49 × z-³/ 7-³×10 × z-⁵
= 49 × z² × 7³/ 10
= 16807z²/10
= 1680.7z²(ans).
HOPE IT WAS HELPFUL..
PLEASE mark this answer brainliest..