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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

In a right angled triangle , the three sides ,i.e. the perpendicular(P) , base (B) and Hypotenuse(H) give us 6 trigonometrical ratios or identities.These are: Sine (sin)= Cosine (cos)= Tangent (tan)= The above are the standard ratios , the ones given below are the reciprocal ratios: Secant (sec)= Cosecant (cosec)= Cotagent (cot)= Remember, sinФ * secФ = 1 cos Ф* cosecФ=1 tanФ* cotФ=1 ----------------------------------------------------------------------