Math, asked by debjit2069, 1 month ago

If a+9/a=3 find 3a³-81

Answers

Answered by mahadevchakravarti25

0

Answer:

a+9/a=3

a+9=3a

9=3a-a

9=2a

a=9/2. (1)

3a³-81. (2)

a ka man smi (2) me rakhane par

3(9/2)³-81

3(729/8)-81

2187/8-81

(2187-81×8)/8

(2187-648)/8

1539/8

192.37

Previous Question

Next Question

Similar questions

Math, 29 days ago

252-30×9÷3+9 tell me in detail ...

Math, 29 days ago

12.046×10²³ +36.138×10²¹ =?

Physics, 29 days ago

Rationlise the denominator (1)2/√3-√5 (2) 1/√5-√4 (3) 5√3+3√5/ 5√3-3√5...

Math, 1 month ago

pls give me answer ASAP...

Math, 1 month ago

the diameter of the circle is 5.0 cm find its circumference...

English, 9 months ago

write a story 150 to 200 words - an old couple was living in service adjacent flat one day he saw some commotion in their house . He went there and found...

Math, 9 months ago

Can you explain how will 34.88/10 be 3.488...

Math, 9 months ago

Ranveer makes a cuboid of plasticine of sides 3cm x 3cm x 4cm. How many such cuboids will he need to form a cube. pls answer I will make brainliest...