Question

If sin A =3/4 find cos , tan A,cotA and sec

Answer 1

Step-by-step explanation:

• sinA=3/4= means 4 is hypotenuse and 3 is opposite side

then other side =4^2=3^2+x^2 where x is other side

16=9+x^2 then other side =√7

cosA=adjacent side divided by hypotenuse =√7/4

reciprocal of cos is sec then secA =4/√7

sinA/cosA=tanA=3/4÷√7/4=3/√7

reciprocal of tan is cot then cotA=√7/3