Math, asked by majidakhtar31, 1 year ago

sinthetha=a÷b then find costhetha

krish7758: cos (theta)= b÷a

Answers

Answered by PHOENIX9769

1

Answer:√b^2+a^2/b=cos theta

Step-by-step explanation:Sin^2 +cos

^2=1

(a/b)^2+cos^2=1

1+a^2/b^2=cos^2

b^2+a^2/b^2=cos^2

√b^2+a^2/b=cos theta

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