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lubasha [3.4K]
3 years ago
13

What adds to 90 and multiples to 2025

Mathematics
1 answer:
umka21 [38]3 years ago
8 0

45!

45 + 45 = 90

45 x 45 = 2025

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Please someone help me to prove this. ​
dem82 [27]
<h3><u>Answer</u> :</h3>

We know that,

\dag\bf\:sin^2A=\dfrac{1-cos2A}{2}

\dag\bf\:sin2A=2sinA\:cosA

<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

<u>Now, Let's solve</u> !

\leadsto\:\bf\dfrac{sin^2A-sin^2B}{sinA\:cosA-sinB\:cosB}

\leadsto\:\sf\dfrac{\frac{1-cos2A}{2}-\frac{1-cos2B}{2}}{\frac{2sinA\:cosA}{2}-\frac{2sinB\:cosB}{2}}

\leadsto\:\sf\dfrac{1-cos2A-1+cos2B}{sin2A-sin2B}

\leadsto\:\sf\dfrac{2sin\frac{2A+2B}{2}\:sin\frac{2A-2B}{2}}{2sin\frac{2A-2B}{2}\:cos\frac{2A+2B}{2}}

\leadsto\:\sf\dfrac{sin(A+B)}{cos(A+B)}

\leadsto\:\bf{tan(A+B)}

5 0
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Step-by-step explanation: Because none of them will equal the solution which is 0.5,

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3 0
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(Science question)
cestrela7 [59]
I believe the fourth one is the answer.
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Explain how you would solve 16 / C equals 8 then solve the equation
Fantom [35]

Answer: 2

Step-by-step explanation: you divide 16 by 8 then substitute the number you get for C. 16/8=2 Which means C=2.

3 0
2 years ago
Given log1712 log1715=log17xlog1712 log1715=log17x what is the value of x?
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Log1715=Log17X X=Log1715/Log17 X=2,6
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