bilal3627 bilal3627

03-06-2017
Mathematics

contestada

if cos3a=sin(a-22°) ,where 3a & (a-22°) are acute angles find a

Respuesta :

anonymous79 anonymous79

03-06-2017

since they are acute, they lie in first quadrant
how to check that they are correct??
Substitute a=28 into the equation
cos(3*28)=0.104...
sin(28-22)=0.104
hence it is correct

Ver imagen anonymous79

Answer Link

Otras preguntas

Solving a system of linear equations using the substitution method. 5x+4y=-26 5-x=-6y

Why is the nirtogen cycle important to the ecosystem??

What do You have when You snap your fingers twice every second?

When was jimmy carter president of the united states?

Find the missing length of x

Could you die if you accidentally take a handful of melatonin, or just sleep for a long time?

The ratio of Julia’s peas to Vlada’s peas was 3:2. After Julia gave 15 peas to Vlada, she still had 10 more peas than Vlada. How many peas did Julia have to sta

Which statement about electrolytes and nonelectrolytes is not true?

Why are most fossils found in sedimentary rocks?

what's the measure of angle 1? what's the measure of angle 2? what's the value of x? what's the value of y?