Question

13. sec 0 .cosec 0 = tan 0 + cot 0.
[Bihar 2009A]​

Answer 1

Answer:

secant zero into cos 80 is equal to tan 0 + 80 is equal to 1 into not defined is equal to zero + not defined therefore not defined is equal to not defined answer is not defined

Answer 2

Answer:

Step-by-step explanation:

From LHS,

secO.cosecO

1/cosO.1/sinO

1/cosO.sinO

Form RHS,

sinO/cosO+cosO/sinO

sin^2O+cos^2O/cosO.sinO

1/cosO.sinO [sin^2A+cos^2A=1]

LHS=RHS