3. [0/1 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.1.011. Write the trigonometric expression in terms of sine and cosine, and then simplify. sin(0) - csc(0) cos(0) sin (0) cos ( 8) X Need Help? Read It Watch It 4. [-/1 Points] DETAILS SPRECALC7 7.1.015. Simplify the trigonometric expression. 3 sin(t) + 4 tan(t) tan(t) Need Help? Read It 5. [-/1 Points] DETAILS SPRECALC7 7.1.019. Simplify the trigonometric expression. sec (x) - 1 sec- (x) Need Help? Read It Watch It6. [-/1 Points] DETAILS SPRECALC7 7.1.023. Simplify the trigonometric expression. 1 + sin(U) cos(U) cos(U) 1 + sin(u) Need Help? Read It Watch It 7. [-/1 Points] DETAILS SPRECALC7 7.1.027. Simplify the trigonometric expression. 1 - sin(a) 1 + sin(a) Need Help? Read It 8. [-/3 Points] DETAILS SPRECALC7 7.1.033. Verify the identity. cos(u) secU) = cot(u) tan(u) Use a Reciprocal Identity to rewrite the expression, and then simplify. cos(u) sec(U) = (cos(u) sectu) )( tan(u) = cos(U) . COS(U) Need Help? Read It Watch It9. [-/3 Points] DETAILS SPRECALC7 7.1.043. Verify the identity. 1 - sin (y) - = 1 + tan-(y) Use a Pythagorean Identity in the denominator, and then use a Reciprocal Identity. 1 - sin (y) Use a Pythagorean Identity. Need Help? Read It Watch It 10. [-/5 Points] DETAILS SPRECALC7 7.1.053. Verify the identity. sec(t) - cos($ = sin2(t) sec(t) Use a Reciprocal Identity to rewrite the expression in terms of cosine only, and then simplify. cos(t) sec(t) - cos(t) sec(t) -cos(t) (cos(t) ) Use a Pythagorean Identity.11. [-/4 Points] DETAILS SPRECALC7 7.1.066. Verify the identity. csc(x) - cot(X) = cot(x) sec(x) - 1 1 cos(x) sIn (x) sin (x) csc(x) - cot(x) . = 1 sec(x) - 1 cos(x) sin(x) sin(x) sin(x) cos(x) = 1 1 sin(x) cos(x) cos(x) - cos-(x) sin(x) - sin(x) cos(x) = cos(x) ( 1 - ( sin(x) (1 - cos(x)) sin(x) = cot(x) Need Help? Read It Watch It 12. [-/1 Points] DETAILS SPRECALC7 7.1.091. Make the indicated trigonometric substitution in the given algebraic expression and V x2 - 1, x = sec(@) Need Help? Read It Watch It