CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Greatest Binomial Coefficients

If 10 2y = 2...

Question

If 10 $^{2 y}$ = 25, then 10 $^{- y}$ equals:

A

-

\frac{1}{5}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

\frac{1}{625}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

\frac{1}{50}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

\frac{1}{25}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

E

\frac{1}{5}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is E $\frac{1}{5}$
$10^{2 y} = 25 ⟹ 10^{y} = 5 ∴ 10^{- y} = \frac{1}{5}$

Suggest Corrections

thumbs-up

2

Similar questions

t_{5}, t_{10}

t_{25}

5^{t h}, 10^{t h}

25^{t h}

terms of an AP respectively, then the value of

∣ ∣ ∣ ∣ \begin{matrix} t_{5} & t_{10} & t_{25} 5 & 10 & 25 1 & 1 & 1 \end{matrix} ∣ ∣ ∣ ∣

5^{k^{2}} (25^{2 k}) (625) = 25 \sqrt{5}

k < - 1

, find the value of

k

.

y = 1 - \frac{1}{5} + \frac{1 \cdot 4}{5 \cdot 10} - \frac{1 \cdot 4 \cdot 7}{5 \cdot 10 \cdot 15} + \dots \infty

8 y^{3} =

{log}_{10} 5 = 0.6990,

without using log tables, find

{log}_{10} 25, {log}_{10} 4 \sqrt{625}, {log}_{10} (\frac{1}{3125})

log 5000

{log}_{10} 2

Solve : $11 (x - 5) + 10 (y - 2) + 54 = 0$

$7 (2 x - 1) + 9 (3 y - 1) = 25$

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Visualising the Terms

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Greatest Binomial Coefficients

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon