Practice Questions for CBSE Class 10 Maths

Class X , CBSE sample practice questions

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1. Evaluate :  2( sin ² 45^o  + cos ³ 60^o ) – 4 (cos ⁴ 60^o – sin ² 30^o)
2. If  cos θ =  d / ( c²  + d² ) ½  and d > 0 , find the values of sin θ and tan θ.
3. If (x-2) is a factor of  the polynomial

x ⁴  + 2 x ³ - 11 x ² - 6x + 24   

             Find all the zeroes of this polynomial.

See Answers Below

    

Answer 1. 0 i.e. zero    2.  sin θ= c/( c²  + d² ) ½ ,  tan θ= c/d .  3. x =2, x= -4, x=√3,x=-√3