Question

Trigonometry
6th question....

Answer 1

ANSWER

now BC=

$\sqrt{4 {}^{2} + 3 {}^{2} } \: cm \\ = 5 \: \: cm$

• NOW
• SIN(A)=BC/AC=5/12
• COS(A)=AC/BC=12/5
• COS(A)-SIN(A)=12/5 - 5/12=35/60=7/12

ANSWER IS 7/12