Question

sin A =12/13 find cos A







































sin a equals to 12 upon 13 find cos A ​

Answer 1

Answer:

cos A=5/13

Step-by-step explanation:

sin A=p/h=12/13

cos A=b/h,

but value of b is unknown so we will find it out

l²+b²=h²

b²=h²-l²

b²= (13)²-(12)²

b²=25

b=5

Hence cos A =5/13

Answer 2

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