Question

cos if cos A is equals to 12 by 13 then find sin and Tanya
​

Answer 1

Answer:

Step-by-step explanation:

If cosA=12/13

Sin^2A+ cos^2 a = 1

Sin^2A = 1- 144/169

Sin^2A = 25/ 169

SinA= 5/13

TanA = sinA /cosA =5/12