If 4 cot ๐ โ 5 = 0, then the value of 5 sin ๐โ4 cos ๐5 sin ๐+4 cos ๐ is
Question
If 4 cot ๐ โ 5 = 0, then the value of 5 sin ๐โ4 cos ๐5 sin ๐+4 cos ๐ is
Solution
To find the value of 5 sin ๐โ4 cos ๐ / 5 sin ๐+4 cos ๐, we need to first solve the equation 4 cot ๐ โ 5 = 0.
Step 1: Rearrange the equation to isolate cot ๐: 4 cot ๐ = 5
Step 2: Divide both sides of the equation by 4: cot ๐ = 5/4
Step 3: Take the reciprocal of both sides to find the value of tan ๐: tan ๐ = 4/5
Step 4: Use the Pythagorean identity to find the value of sin ๐ and cos ๐: sin ๐ = โ(1 - cos^2 ๐) cos ๐ = โ(1 - sin^2 ๐)
Step 5: Substitute the values of sin ๐ and cos ๐ into the expression 5 sin ๐โ4 cos ๐ / 5 sin ๐+4 cos ๐: 5(โ(1 - sin^2 ๐)) - 4(โ(1 - cos^2 ๐)) / 5(โ(1 - sin^2 ๐)) + 4(โ(1 - cos^2 ๐))
Step 6: Simplify the expression further if possible.
Please note that the specific values of sin ๐ and cos ๐ cannot be determined without additional information.
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