Question

What is the value of cos2 67° - sin2 23°

Answer 1

Heya !!!



Cos²67° - Sin²23°


Cos²(90-23°) - Sin²23°



Sin²23° - Sin²23°


0



★ HOPE IT WILL HELP YOU ★

Answer 2

Hey mate,

Here is ur answer,

$= > \: {cos}^{2} 67 - {sin}^{2} 23$

$= > \: {cos}^{2} (90 - 23) - {sin}^{2} 23$

$= > \: {sin}^{2} 23 - {sin}^{2} 23$
=> 0.


:-)Hope it helps u.《《 VIDYA 》》