Question

if cot A =12/5,then the value of (sin A + cos A) cosec A is:​

Answer 1

Answer:

17/5 is correct answer

Step-by-step explanation:

we know that..

cotA=base/perpendicular..

So...given in this question

base/perendicular=12/5

Now...

b=12..and p=5

then ,,hypotenus^2 = 12^2+5^2

=13

Now..

sinA= p/h=5/13

cosA=b/h=12/13

cosecA=h/p=13/5

Now...put the value inthe question..

(5/13+12/13)×13/5

....=17/5 is correct answer....