Question: (a) If cos (28 ) - sin (28) = cos(A ), then A degrees (b) If cos (7x) - sin' (7x) = cos ( B),

(a) If cos (28 ) - sin (28) = cos(A ),

(a) If cos (28 ) - sin (28) = cos(A ), then A degrees (b) If cos (7x) - sin' (7x) = cos ( B), then B

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