Question

please help me it's urgent

don't spam​

Answer 1

Step-by-step explanation:

$\huge\underline{\underline{\sf ANSWER}} \\ \frac{ \sin(a) }{ \sin(90 - a) } + \frac{ \cos(a) }{ \cos(90 - a) } \\ \\ \\ \frac{ \sin(a) }{ \cos(a) } + \frac{ \cos(a) }{ \sin(a) } \\ \\ \frac{ { \sin(a) }^{2} + { \cos(a) }^{2} }{ \cos(a) \sin(a) } \\ \\ \frac{1}{ \cos(a) \times \sin(a) } \\ \\ \frac{1}{ \cos(a) } \times \frac{1}{ \sin(a) } \\ \\ \sec(a) \times \csc(a)$

Answer 2

Answer:

Step-by-step explanation:

sin(90-Ф) = cosФ ; cos(90-Ф) = sinФ

so putting these in ur ques,

sinФ/cosФ + cosФ/sinФ

takin lcm

(sin²Ф+cos²Ф)/sinФcosФ

1/sinФcosФ

⇒secФcosecФ