Question

If cos θ =

24

25

then find sin θ and tan θ without using identity. Also, find sin2θ +

cos2θ.​

Answer 1

Step-by-step explanation:

$sinx \ = \frac{1}{25}$

$tan \: x = \frac{1}{24}$

$sin2x = 2sinx cosx$

$cos2x = cos {}^{2} x - {sin}^{2} x$

$sin2x + cos2x = ( {cosx - sinx)}^{2} = ({ \frac{23}{25} })^{2}$

=529/625