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#🏆పోటీ పరీక్షల స్పెషల్
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![🏆పోటీ పరీక్షల స్పెషల్ - 71) 1 / 06 I 8in (, 0080 (i) A= then verify that A'A = I sin (4 { @೧ಏ@ 8in ( 0080 (ii) A = then verify that A'A = [ 8in ( CO8( INCERT Ex 3.3, Q 6, Page 67] Sol (i) sin @ COS( A - sin 0 COs( a a COs0 sin @ A'= [ sin0 COS0 - [ హ sin 0 COSO sin & Sor C080, AA ~ sina - sin 0 COSU COS0 cos? & + sin? & COSGsin 0 sin 0cosಯ ~ sin 0COSQ cosasin @ sin2ే+ COs2 G १ =1 a Hence, A'A = I sin @ COSU (ii) Given that; A = sin0 -COS0 sina COSC A'= > cosa | sina sind sin 0 COS0 ~ COS0 $0, AA "ಕ COS sind sin 0 COSC sin? 0 + COs? 0 sin Gcosa cosd sin0 ~ cosd sind _ sindcosd cos' 0 + sin' 0 [ ! = [ @AV Pheneendra @MATH Solutions By I Hence, A'A = I 71) 1 / 06 I 8in (, 0080 (i) A= then verify that A'A = I sin (4 { @೧ಏ@ 8in ( 0080 (ii) A = then verify that A'A = [ 8in ( CO8( INCERT Ex 3.3, Q 6, Page 67] Sol (i) sin @ COS( A - sin 0 COs( a a COs0 sin @ A'= [ sin0 COS0 - [ హ sin 0 COSO sin & Sor C080, AA ~ sina - sin 0 COSU COS0 cos? & + sin? & COSGsin 0 sin 0cosಯ ~ sin 0COSQ cosasin @ sin2ే+ COs2 G १ =1 a Hence, A'A = I sin @ COSU (ii) Given that; A = sin0 -COS0 sina COSC A'= > cosa | sina sind sin 0 COS0 ~ COS0 $0, AA "ಕ COS sind sin 0 COSC sin? 0 + COs? 0 sin Gcosa cosd sin0 ~ cosd sind _ sindcosd cos' 0 + sin' 0 [ ! = [ @AV Pheneendra @MATH Solutions By I Hence, A'A = I - ShareChat](https://cdn4.sharechat.com/bd5223f_s1w/compressed_gm_40_img_565027_316f74cb_1778044527695_sc.jpg?tenant=sc&referrer=pwa-sharechat-service&f=695_sc.jpg "🏆పోటీ పరీక్షల స్పెషల్ - 71) 1 / 06 I 8in (, 0080 (i) A= then verify that A'A = I sin (4 { @೧ಏ@ 8in ( 0080 (ii) A = then verify that A'A = [ 8in ( CO8( INCERT Ex 3.3, Q 6, Page 67] Sol (i) sin @ COS( A - sin 0 COs( a a COs0 sin @ A'= [ sin0 COS0 - [ హ sin 0 COSO sin & Sor C080, AA ~ sina - sin 0 COSU COS0 cos? & + sin? & COSGsin 0 sin 0cosಯ ~ sin 0COSQ cosasin @ sin2ే+ COs2 G १ =1 a Hence, A'A = I sin @ COSU (ii) Given that; A = sin0 -COS0 sina COSC A'= > cosa | sina sind sin 0 COS0 ~ COS0 $0, AA \"ಕ COS sind sin 0 COSC sin? 0 + COs? 0 sin Gcosa cosd sin0 ~ cosd sind _ sindcosd cos' 0 + sin' 0 [ ! = [ @AV Pheneendra @MATH Solutions By I Hence, A'A = I 71) 1 / 06 I 8in (, 0080 (i) A= then verify that A'A = I sin (4 { @೧ಏ@ 8in ( 0080 (ii) A = then verify that A'A = [ 8in ( CO8( INCERT Ex 3.3, Q 6, Page 67] Sol (i) sin @ COS( A - sin 0 COs( a a COs0 sin @ A'= [ sin0 COS0 - [ హ sin 0 COSO sin & Sor C080, AA ~ sina - sin 0 COSU COS0 cos? & + sin? & COSGsin 0 sin 0cosಯ ~ sin 0COSQ cosasin @ sin2ే+ COs2 G १ =1 a Hence, A'A = I sin @ COSU (ii) Given that; A = sin0 -COS0 sina COSC A'= > cosa | sina sind sin 0 COS0 ~ COS0 $0, AA \"ಕ COS sind sin 0 COSC sin? 0 + COs? 0 sin Gcosa cosd sin0 ~ cosd sind _ sindcosd cos' 0 + sin' 0 [ ! = [ @AV Pheneendra @MATH Solutions By I Hence, A'A = I - ShareChat")