Prove each identity using a t-chart. Left hand side Right hand side a) csc^{2} x(1 - cos^{2} x)=1 b) (cot x + tan x)/sec x = csc x
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Originally Posted by alejandro Prove each identity using a t-chart. Left hand side Right hand side a) csc^{2} x(1 - cos^{2} x)=1 b) (cot x + tan x)/sec x = csc x ok ... have you made the requisite t-charts to verify each identity?
could you clarify as to what do you mean by " using t-charts". Does it mean pluging in values of trigonometric ratios in terms of the sides of a right triangle like, adjacent, opposite & hypotenuse etc??
Hello, alejandro! I'm not familiar with a t-chart. Since Since The left side becomes: . We have: . Multiply by . .
for exercise a)csc2 x(1 - cos2 x)=1 I have to prove csc2 x(1 - cos2 x)=1 1 = 1
Originally Posted by alejandro for exercise a)csc2 x(1 - cos2 x)=1 I have to prove csc2 x(1 - cos2 x)=1 1 = 1 Soroban completed that proof in post #4 ... did you not see it?
Originally Posted by alejandro Prove each identity using a t-chart. Left hand side Right hand side a) csc^{2} x(1 - cos^{2} x)=1 b) (cot x + tan x)/sec x = csc x We can also do it alternatively as shown
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