Question: 6. Solve for length CB. [6] D 308 m E 493 m O A 152 m B For question 7 use the following identities and

6. Solve for length CB. [6] D 308 m E 493 m O A 152 m B For question 7 use the following identities and work the Left-Hand Side of the given identity until LHS=RHS sin0 = csco COSO = seco tand = cote tano = sino coto = cose cose sind sin 0 + cos20 = 1 1 + tan20 = sec20 1 + cot20 = csc20 7. a. Prove the given identity. sinOtand + cos0 = sec0 b. Prove the given identity. 1+sino cosO coso 1-sine [6]

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