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ICSE Class 10 Answered

prove:(sinø+secø)2+(cosø+cosecø)2=(1+secø.cosecø)
Asked by praveen.ujjwal | 12 Nov, 2018, 09:15: PM
answered-by-expert Expert Answer
begin mathsize 18px style LHS space equals open parentheses sin empty set plus sec empty set close parentheses squared plus open parentheses cos empty set plus cosec empty set close parentheses squared RHS thin space left parenthesis should space be right parenthesis equals open parentheses 1 plus sec empty set cosec empty set close parentheses squared hint colon take space LHS thin space convert space into space sin space and space cos you space will space get fraction numerator sin squared empty set cos squared empty set plus 1 plus 2 sin empty set cos empty set over denominator cos squared empty set end fraction plus fraction numerator sin squared empty set cos squared empty set plus 1 plus 2 sin empty set cos empty set over denominator sin squared empty set end fraction equals fraction numerator sin squared empty set cos squared empty set plus open parentheses sin empty set plus cos empty set close parentheses squared over denominator cos squared empty set end fraction plus fraction numerator sin squared empty set cos squared empty set plus open parentheses sin empty set plus cos empty set close parentheses squared over denominator sin squared empty set end fraction cross space multiply space and space simplify then space take space RHS space convert space into space sin space and space cos end style
Answered by Arun | 13 Nov, 2018, 09:23: AM

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ICSE 10 - Maths
if a is an acute angle and sec a = 17/8, find all other trigonometric rarios of angle a ( using trigonometric indentities).
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ICSE 10 - Maths
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ICSE 10 - Maths
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ICSE 10 - Maths
To memorize trigonometry formulas ,please let me know if there is  any easy method ? -thanks
Asked by rashikulkarni28 | 10 Jun, 2022, 10:23: AM
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ICSE 10 - Maths
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Asked by rashikulkarni28 | 08 Jun, 2022, 03:14: PM
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ICSE 10 - Maths
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Asked by rashikulkarni28 | 01 Jun, 2022, 07:08: PM
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ICSE 10 - Maths
tan ^2
Asked by panditpriyanka323 | 12 Feb, 2022, 02:44: PM
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ICSE 10 - Maths
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Asked by anshujaiswal221502 | 08 Feb, 2022, 09:12: PM
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ICSE 10 - Maths
(cosec A -sinA) (sec A -cosA)=1/tanA cot A
Asked by priyankakumarisoni1608 | 08 Aug, 2021, 03:29: PM
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ICSE 10 - Maths
sec²a.cosec²a = tan²a + cot²a+ 2
Asked by rakshitsujata1 | 07 Apr, 2021, 08:44: AM
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