<span>19 and 43/100................</span>
Answer:
f(5)=4
Step-by-step explanation:
f(5)=5_1=4
.....
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1
Consider the left side
2cos²A - 1 ← replace 1 by sin²A + cos²A
= 2cos²A - ( sin²A + cos²A)
= 2cos²A - sin²A - cos²A
= cos²A - sin²A = right side ⇒ verified
Answer: 6x^2-xy-y^2.
Tell me if you want step by step!!
Hope this helped. :)
