(tan theta+ cot theta)^2= sec^2 theta+cosec^2 theta

Proved that .

Step-by-step explanation:

We have to prove that  

Now, Left hand side  

=

= {Since we know the formula (a + b)² = a² + 2ab + b²}

=  

{Since }

=

=

{Since we know the identities:

and }

= Right hand side

Hence, proved.

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d