Since the sine and cosine functions are cofunctions, they are complementary. The format for this is that sinx=cos(90-x). This works for secant and cosecant and tangent and cotangent. So, sin25°=cos65°.
Answer:
what is formular of vector
Step-by-step explanation:
RS = 8 × cos(61°) = 2.9 [1 dp] = 3cm
Answer:
400 times
Step-by-step explanation: