53(A)1010237(C)(D)1010-15. If sec - tano then lies in the2(A) first qu

1.	53(A)1010237(C)(D)1010-15. If sec - tano then lies in the2(A) first quadrant (B) second quadrant(C) third quadrant (D) fourth quadrantIf cos 0 + sin 0 = V2 cos 0, thencos - sin 0 =(A)I sin A
Answer» ANSWER: Step-by-step EXPLANATION: cosa+sina=V2cosa =square on both sides =1+2sinacosa=2cos^2a =2sinacosa=2cos^2a-1 =sin2a=cos2a cosa-sina square =1-2sinacosa =1-cos2a =1-2cos^2+1 =2-2cos^2 =2(1-cos^2) =2(sin^2) =2sin^2 take ROOT then =V2sina then cosa-sina=V2sina

53(A)1010237(C)(D)1010-15. If sec - tano then lies in the2(A) first quadrant (B) second quadrant(C) third quadrant (D) fourth quadrantIf cos 0 + sin 0 = V2 cos 0, thencos - sin 0 =(A)I sin A

Answer»

ANSWER:

Step-by-step EXPLANATION:

cosa+sina=V2cosa

=square on both sides

=1+2sinacosa=2cos^2a

=2sinacosa=2cos^2a-1

=sin2a=cos2a

cosa-sina

square

=1-2sinacosa

=1-cos2a

=1-2cos^2+1

=2-2cos^2

=2(1-cos^2)

=2(sin^2)

=2sin^2

take ROOT then

=V2sina

then cosa-sina=V2sina

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53(A)1010237(C)(D)1010-15. If sec - tano then lies in the2(A) first quadrant (B) second quadrant(C) third quadrant (D) fourth quadrantIf cos 0 + sin 0 = V2 cos 0, thencos - sin 0 =(A)I sin A​

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53(A)1010237(C)(D)1010-15. If sec - tano then lies in the2(A) first quadrant (B) second quadrant(C) third quadrant (D) fourth quadrantIf cos 0 + sin 0 = V2 cos 0, thencos - sin 0 =(A)I sin A