1. find the exact value of cos2θ if sin 2θ=3/4 and θ is between 0° and 90°<br /><br /> 2. verify that sinθ(cos²θ-cos2θ)=sin³θ​

answer: need picture of problem

step-by-step explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: