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

10x ÷ 5 = 30Please answer ASAP(:

Michaela is starting a farm and wants to ensure that the soil will hold enough moisture for her crops. Which strategy would most likely help her to retain soil

What do social scientists who support the CSI effect believe? 1Points A Television dramas about police work influence citizens to expect more forensic evidenc

The word _____ means the coming of one thing after another in some order.

If Maria winks exactly 5 times every minute and she sleepsexactly 8 hours a day, how many times does Maria wink everyday?

"I did discover many particulars in the heavens that had been unseen & unheard of until this our age." Who is most likely credited with this quote? *

What is the sum of 30 1/4 + 30 1/4

Landmark cases create changes in

Triangle DEF is congruent to D'EF' by the SSS theorem. Which single rigid transformation is required to map DEF onto D'EF'? dilation reflection rotation transla

Which of the following most accurately describes the extent of Alexander the Great's empire? 1. From Greece and Egypt to the Middle East and northeastern pa