Question

if cos A=12/15,then find sin A and tan A​

Answer 1

Answer:

sin A = 9/15 ; tan A = 9/12

Step-by-step explanation:

cos A = 12/15

cos²A = 144/225

We know that:

sin²A + cos²A = 1

=> sin²A = 1 - cos²A

=> sin²A = 1 - (144/225)

=> sin²A = (225-144)/225

=> sin²A = 81/225

=> sin A = 9/15

Also:

tan A = sin A / cos A

=> tan A = (9/15) / (12/15)

=> tan A = 9/12

Answer 2

Answer:

solved

Step-by-step explanation:

cos A=12/15

sin A = 9/15 and tan A​ = 9/12