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veronica howard
Answer:
sin18/cos72= sin(18) sec(72)
Step-by-step explanation:
rewrite it as a product: sin(18)/1 * 1/cos(72)
Divide sin(18) by 1 and rewrite 1/cos(72) as sec(72): sin (18) sec (72)
The value of an expression will be equal to -1.
The complete question is given below:-
If the value of w is -5 then find the value of the expression w² + 3w -11.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of numbers, variables, and functions using signs like addition, subtraction, multiplication and division.
The given expression will be solved as follows:-
E = w² + 3w -11.
E = ( -5 )² + ( 3 x -5 ) -11
E = 25 - -15 - 11
E = 25 - 26
E = -1
Therefore the value of an expression will be equal to -1.
To know more about expression follow
brainly.com/question/723406
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Trig ratios can be remembered with the phrase SOH CAH TOA.
Sine: Opposite/Hypotenuse.
Cosine: Adjacent/Hypotenuse
Tangent: Opposite/Adjacent.
In this triangle, the adjacent side to angle R (the side touching the angle) is 12 cm, the opposite side (the side farthest away) is 5 cm, and the hypotenuse (the longest side) is 13 cm.
So, filling in the measurements with the correct SOH CAH TOA ratios results in:
tan R = 5/12
cos R = 12/13
sin R = 5/13
Answer:
maybe it's 12
Step-by-step explanation:
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