Question

Which of the following statement is not true.

a) cos (90 – tehta) = sin theta b) tan = tan (90 – )

c) tan × tan (90 – ) = 1 d) sin (90 –) = cos​

Answer 1

Answer:

B

Step-by-step explanation:

tan teta = tan(90-teta)

tan teta = cot teta

Answer 2

ANSWER : b)

$\tan\alpha = \tan(90 - \alpha )$

EXPLANATION :

$\tan\alpha = \tan(90 - \alpha ) \\ \tan\alpha = \cot\alpha \: \: \: \: \: \: \: \: \: \: \: \: \:$

HOPE THIS WILL HELP YOU.