Which of the following are not trigonometric identities, check all that apply a.) sec^(2) x - tan^(2) x=1 b) sec^(2) x+csc^(2) x=1 c) sin^(2) x + cos^(2) x=1 d) tan^(2) x + sec^(2) x =1

By looking the given options, we can say that some of them are following pythagorean identities and pythagorean identities are

sin^2(x) + cos^2(x) =1, sec^2(x)-tan^2(x) =1,csc^2(x) -cot^2(x)=1

So out the four options, option a and option c are following pythagorean identity and option b and option d are not following pythagorean identity. And we have to find those options which are not identities .

So the correct options are

b) sec^{2} x+csc^{2} x=1 \ d) tan^{2} x + sec^{2} x =1

Sin^2x-cos^2x=1 & sec^2x-csc^2x=1

Step-by-step explanation:

For those who have a different answer choices that’s the answer.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

a c

step-by-step explanation: