Question: i need help how to solve these and i need to know how can i solve number 2 and 3 without using a calculator Section
i need help how to solve these and i need to know how can i solve number 2 and 3 without using a calculator

Section 6.4: 0. Find the exact value of the following 1) sin () 2) cos (5) 3) tan '(0)) 4) sin 1(42 10. Evaluate each expressions without using a calculator. 1) sin(=) 2) sin (4) 3) sin(sin ] (13)) 4) sin '(sin 3309 11. Evaluate sin(tan () and cos(tan '(=)) without using a calculator
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