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

There are two Pythagorean triples where one leg is 16 and the other leg is odd. True or False

Help with 15 thanks

Lucy wants to make a table top pad for a square table that has a side of 3 feet. What is the area of the pad?

In the play Trifles, what tone is likely revealed by the following stage directions? [With a sigh, (Mrs. Hale) is about to sit down in the rocking-chair. Before

Using complete sentences, explain the purpose and administration of international law.

Parker was born on February 29,2008. The second time he is able to celebrate on his actual birthday is in 2016. How many days old will Parker be on February 29,

a stone falls from the top of a cliff into the ocean. In the air it had an average speed of 16m/s.In the water it had an average speed of 3m/s before hitting th

I HAVE A FRENCH QUESTION! PLEASE HELP!! The answer must be 4-6 sentences.

What is the value of x? Leave your answer in simlplest radical form.

The diagram shows two parallel lines and a transversal if the measure of two is 47 what is the measure of three?