Question

pls Answer the 2nd and the 3rd one

Answer 1

Answer:

Kindly see the answers from the web only, not the app!

Step-by-step explanation:

First question/answer :-

$\rightarrow \bold{\dfrac{4^{5}\times4^{6}}{4^{3}} }$

$\rightarrow \bold{\dfrac{4^{5}^{+}^{6}}{4^{3}} }$

$\rightarrow \bold{\dfrac{4^{1}^{1}}{4^{3}} }$

$\rightarrow \bold{4^{1}^{1}^{-}^{3}=4^{8}}$

Second question/answer :-

$\rightarrow \bold{(3^{-}^{2})^7\times3^{3}\times3^{7}}$

$\rightarrow \bold{3^{-}^{1}^{4}\times3^{3}\times3^{7}}$

$\rightarrow \bold{3^{-}^{1}^{4}^+^{3}^+^{7}}$

$\rightarrow \bold{3^{-}^{1}^{4}^{+}^{1}^{0}}$

$\rightarrow \bold{3^-{^4}}$

Third question/answer :-

$\rightarrow \bold{\dfrac{(5^{5})^{2}^{0}}{5^{4}\times5^{-^7}} }$

$\rightarrow \bold{\dfrac{5^{1}^{0}^{0}}{5^{4}^+{^(^-^7)}} }$

$\rightarrow \bold{\dfrac{5^{1}^{0}^{0}}{5^-{^3}} }$

$\rightarrow \bold{{5^1^0^0^-^(^-^7)}}$

$\rightarrow \bold{5^{1}^{0}^{7}}$

Answer 2

Answer:

Step-by-step explanation:

sum=n/2(X1+Xn)

= 15/2(3+5×15+3-5)

=15/2 ×76= 1140/2

=570