Question

what's ans?????????????​

Answer 1

Answer:

theeta as @

sin@/cos@ = tan@

cos@ / sin@ = cot@

tan@ + cot @ = 2

since ,tan45=cot45 = 1

tan45 + cot45 = 2

1 + 1 = 2

2 = 2

therefore @(theeta ) = 45°

Answer 2

Step-by-step explanation:

(sin a/cos a) + (cos a/sin a)=2

=>tan a+cot a=2

=>tan a + (1/tana)=2

=> tan^2 a+1=2tan a

=>tan^2 a -2 tan a+1=0

=> tan^2 a-(1+1)tan a +1=0

=>tan a(tan a-1)+1(tan a-1)=0

=>(tan a -1)(tan a+1)=0

so,, a=45°