Question

If tanA= ¾ and A is acute, then value of cosA is ( a) 5/4 (b) 5/3 (c) 3/5 ( d) 4/5

Answer 1

Answer:

4

Step-by-step explanation:

tanA=sinA÷cosA so, CosA =4

Answer 2

Answer:

4/5

Step-by-step explanation:

we know opposite side = 3

adjacent side = 4

so by pythagoras theorem we have hypotenuse = root of 4 squared + 3 squared

which is 5

cos a = adjacent / hypotenuse

=4/5

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